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 Facilities Glossary

As our industry changes we are constantly encountering new terms and concepts. We add them here to help you stay current on industry lingo. If you encounter a new term that does not appear here, please Contact Us so that we can research and add it.


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Terms Beginning with 'C'

Cable Management

Most planners know the experience of having miles of cable running through ceilings that is of no use because they don't know were it is going. One method of avoiding this problem is to have all cable originating in a dedicated room. Cables terminate ...
 4.14.05



CAD

See Computer-Aided Design. ...
 4.14.05



CADD

See Computer-Aided Design and Drafting. ...
 4.14.05



CAFM

See Computer-Aided Facilities Management. ...
 7.24.01



Cage Changing Hood/Station

In the animal care industry, it is a frequent requirement that the animals be disease-free. To maintain this status, it is necessary that the animals never be exposed to contaminated air. Therefore, it is necessary to move them from a soiled cage to a c...
 2.21.03



Cagewasher

In the animal care industry, laboratory animals are usually housed in cages. A cagewasher is a large, stainless steel machine that washes these cages. Usually a pass-through design, outfitted with a washing chemical(acid and alkaline)injection system(as...
 2.21.03



Calibration

The process of adjusting an instrument or compiling a deviation chart so that its reading can be correlated to the actual value being measured. ...
 11.16.04



Calorie

The unit of heat as a measurement of energy. The amount of heat necessary to increase the temperature of one gram of water one degree Celsius....
 7.24.01



CAM

See Computer-Aided Manufacturing. ...
 4.14.05



Capital Lease

A lease transaction that is financially reported by the lessee in the same manner as if the asset acquisition had been purchased and paid for with borrowed funds. In a capital lease the liability and the asset are both recognized on the lessee's balan...
 3.25.05



Carbon Absorber

An add-on control device that uses activated carbon to absorb volatile organic compounds from a gas stream. (The VOCs are later recovered from the carbon.)...
 4.14.05



Carbon Adsorption

A treatment system that removes contaminants from ground water or surface water by forcing it through tanks containing activated carbon treated to attract the contaminants....
 4.14.05



Carbon Fines

Very small particles of carbon that may wash out of an activated carbon filter in a water purification system....
 4.14.05



Carcinogen

An agent capable of causing cancer....
 4.19.07



Cartridge

A container that is prepackaged with filtering components for a water purification system. The module design of filter cartridges makes it easier to change used filters. ...
 4.14.05



Casework

Cabinets, shelving, laboratory benches....
 1.22.04



Cast-In-Place Concrete

Concrete which is poured and left to harden in its permanent location, also called cast-in-situ concrete and in-situ concrete. See also Pre-Cast Concrete. ...
 4.14.05



CBER

See Center for Biologic Evaluation and Research. ...
 4.14.05



CBX

A telecommunication switchboard that switches or exchanges data and voice signals. (PBX refers to phone or voice switches only.)...
 4.14.05



CDRH

See Center for Devices and Radiological Health. ...
 4.14.05



Cell-Mediated Contraction

Cell force monitors have been designed to measure the loads at which cells contract a biomaterial scaffold to which they are attached. One common biomaterial scaffold is "artificial skin" into which new skin cells migrate and regenerate tissue. ...
 8.7.03



Cellular Raceway

A single-level in floor distribution system for power, lighting, electronic and communications systems that is either embedded in the concrete or included as part of the structural load-carrying floor member of the building. Two- or three-celled metal...
 4.14.05



Cementitious Core

A lightweight fill material used to improve the impact load resistance, rolling load capacity and acoustical properties of access floor panels....
 4.14.05



Center for Biologic Evaluation and Research (CBER)

The branch of the FDA that regulates drugs and biological products....
 4.14.05



Center for Devices and Radiological Health (CDRH)

The branch of the FDA that regulates public health and safety aspects of medical devices and radiation emissions from electronic products....
 4.14.05



Central Processing Unit (CPU)

The major components of a computer system with the circuitry to control the interpretation and execution of instructions. (Webster's New World Dictionary of Computer Terms 5E © 1994 Simon & Schuster Inc.)...
 7.24.01



Centrex

A service offered by local telephone companies in which computerized telephone switching equipment is owned, operated and maintained by the phone company and is located on its premises....
 4.14.05



Centrifugal Chiller

A machine which produces chiller water typically for facility air conditioning. A centrifugal chiller utilizes a rotating turbine to generate the compression within the refrigeration cycle....
 4.14.05



Centrifugal Fan

A fan contained in a scroll-shaped housing. Air flows radially into and out of the fan through the impeller (the rotating element of the fan). Centrifugal fans are used for both general and fume hood exhaust....
 4.14.05



Centrifuge

A machine, often used in laboratories, that separates the lighter and heavier parts of a mixture by the use of centrifugal force. ...
 7.24.01



CEOE

Certified Engineering Operations Executive...
 9.21.01



CERCLA

See Comprehensive Environmental Response, Compensation and Liability Act....
 4.14.05



CERCLIS

See Comprehensive Environmental Response, Compensation and Liability Act Information System. ...
 4.14.05



Certificate of Occupancy

A document issued by a governmental authority certifying that all or a designated portion of a building complies with the provisions of applicable statutes and regulations, permitting occupancy for its designated use. When renovation of a facility—o...
 4.14.05



Certified Facility Manager (CFM)

The Certified Facility Manager (CFM) credential sets the industry standard for ensuring the knowledge and abilities of practicing facility managers. The CFM Exam is competency-based, testing what a person can do compared to standards that define the pract...
 7.29.03



CFD

See Computational Fluid Dynamics....
 2.21.03



Chalking

A form of paint degradation in weather resulting in loose, powdery pigment on the painted surface....
 4.14.05



Chamfer

A bevel; the angle made where one surface joins another surface (excluding a right angle)....
 1.22.04



Change Order

Written authorization given by a building owner or the owner's agent to a contractor to change the scope of work, design or materials used or equipment to be installed. One way to reduce change orders in a new construction project is to delay interior...
 4.14.05



Change Room

A room used to put on and take off protective clothing....
 1.22.04



Changes in the Work

In construction contract terminology, these are changes ordered by the owner consisting of additions, deletions or other revisions within the general scope of the contract. The contract sum and the contract time are adjusted accordingly. All changes i...
 4.14.05



Channel

A three-sided, U-shaped member in a sash or frame to receive a glass or panel insert. Also used to describe the path for transmission between two or more sources of voice or data in a multipoint session....
 7.26.01



Characterization Suite

A nanotechnology facility in which scientists measure and determine the properties of their work. This suite is isolated from the rest of the structure with its own walls, foundation, and electrical and mechanical systems. Characterization suites feature ...
 9.13.04



Charge-Coupled Device (CCD)

An integrated circuit used as the foundation for digital photography. Essentially, an extremely light-sensitive camera. CCD tools monitor cell metabolism in living tissue by recording the light emissions of a fluorescent chemical. ...
 11.17.04



Chargebacks

Refers to the practice of the Facilities Management function charging other divisions for services provided. ...
 3.19.04



Charrette

An intensive group work session or meeting for a group task. After char (work) and -ette (small), the term reportedly comes from French schools of architecture where student teams are required to produce architectural models as a major school project. ...
 2.22.07



Checking

Breaks or cracks in the film of a coating that may or may not penetrate to the underlying surface. See also Alligatoring, Cracking, and Crazing....
 7.25.01



Checkpoints

Facilities planners should set up checkpoints during the life of a project. It is impossible for planners to know ahead of time what the business environment will be when the project is finished. Built-in milestones help planners peg progress and prev...
 4.14.05



Chemical Safety Levels

Low Risk (CSL-1): Any chemical risk is usually managed by restricting usage of hazardous chemicals. Typically instrument labs and equipment labs do not use hazardous chemicals openly but rather in sealed vials or containers for use inside various analytic...
 9.12.03



Chemical Sensitization

A health problem characterized by symptoms such as dizziness, chest tightness, eye and throat irritation and nasal congestion when an individual is exposed to even trace amounts of certain chemicals they are sensitized to....
 4.14.05



Chemical Storage

A seperate area for the storage of hazardous chemicals. For safety reasons, large quantities of such chemicals can no longer be stored in laboratories or vivariums....
 1.22.04



Chemical Vapor Deposition (CVD)

CVD is used to grow a thin layer of advanced materials on the surface of a substrate. A non-volatile solid film on a substrate by the reaction of vapor-phase chemicals that contain the required constituents. The reactant gases are introduced into a reacti...
 2.3.04



Chief Security Officer (CSO)

A full-time, executive-level professional devoted to security; this person has IT and investigative background. ...
 7.22.03



Chip Carrier (CC)

A small footprint semiconductor package generally with terminals on all four sides. The package may be manufactured by cofired ceramic or multilayer printed circuit board technologies. ...
 11.3.04



Chlorine Dioxide

CIO2 A synthetic yellowish-green gas that is made stable in an aqueous solution and used in water purification, sanitation applications, and in the paper and pulp industry. ...
 9.13.04



Chromatography

The analysis of a solution or mixture by using an adsorptive substance. As the mixture or solution flows over this substance (for example a strip of paper) the parts of the substance are separated out and can be identified. They often have a color that he...
 10.3.03



Churn Rate

The amount of change in a given facility or organization due to personnel relocation. Churn rate can either be calculated as the amount of floor space changed per year expressed as a percentage of the total amount of floor space, or the number of pers...
 4.14.05



CHW

Chilled Water...
 3.3.03



CHW

Chilled water....
 2.21.03



CICEP

See Construction Industry Cost Effectiveness Program. ...
 4.14.05



CIM

See Computer Integrated Manufacturing....
 2.21.03



Circadian rhythm

The natural body rhythms of wake and sleep, eating behavior, biochemical levels, body temperature, and other bodily functions which repeat during a 24-hour period....
 7.24.01



Cladding

The exterior skin of a building. Examples are glass curtain walls, metal panels or precast cladding of various types....
 4.14.05



Claims-Made Policy

An insurance policy that covers only those claims that occur and are reported during the policy's stated period and subsequent renewal periods. ...
 3.25.05



Class 1-100,000

Measures of air purity for cleanrooms. See Cleanrooms....
 4.14.05



Clean/Dirty Corridor Systems

A system of using two different sets of corridors to separate contaminated staff and supplies from clean staff and supplies. Used in both hospital operating suites and animal facilities....
 4.14.05



Cleanrooms

Specially constructed, mechanically intensive areas or structures with strict environmental controls for airborne particles, temperature, humidity, air motion, etc. Although initially used in the aerospace industry, cleanrooms are now used in many field...
 4.14.05



Clerestory

A high window in an exterior or interior wall of a building located at or near the eaves or ceiling designed to admit increased light into the inner space of the building. ...
 4.14.05



Clinical Trials

In the pharmaceutical industry, product testing using human subjects to demonstrate product efficacy. Informed consent and protection of human rights are prerequisites....
 4.14.05



Closed Loop System

A heating or cooling system where the refrigerant is enclosed in a piping system that is not vented to the atmosphere. (Uniform Solar Energy Code)...
 4.14.05



CM

See also Construction Management/Construction Manager...
 7.24.01



CMMS

Computerized Maintenance Management System ...
 2.21.03



CMOS

See Complementary-Metal-Oxide-Semiconductor Devices. ...
 7.26.01



CMU

See concrete masonry unit....
 4.14.05



Coating

A material that is applied in a liquid or gel state and allowed to cure to a solid protective finish. All paints are coatings, but not all coatings are paints....
 4.14.05



CODEC

A term created to describe the equipment that "compresses" and "decompresses" visual and audio data in a video conference. CODEC stands for COder/DECoder. The equipment compresses the picture and the audio into a digital format to send over tele...
 7.27.01



CODEC Bandwidth

Video CODECs are generally broken into two categories: low bandwidth that operates at 56 Kbps to 384 Kbps and high bandwidth that operates at 384 Kbps to 1.544 Kbps (or higher). Economic low bandwidth CODECs are generally used for individual or small grou...
 7.27.01



Coefficient of Utilization (CU)

A measure commonly applied to indicate the efficiency of a luminaire. CU comprises a ratio of the light delivered to the area to be illuminated compared to the total light output of the lamp or lamps alone....
 7.24.01



Cogeneration

On-site generation of electricity, heat, and/or cooling for the public or private sector. Cogenerators use waste heat created by one process to produce steam which is used, in turn, to spin a turbine and generate electricity. Congenerators may also be a Q...
 7.14.05



Cohesive Failure

Rupturing or tearing of a sealant in which the sealant material itself ruptures without loss of bond to substrate. See Adhesive Failure....
 4.14.05



Collaboratories

Combined lecture and laboratory spaces where researchers can interacting with colleagues and share access to facilities, equipment, data and computational resources....
 5.2.07



Collector Sewers

Pipes used to collect and carry wastewater from individual sources to an interceptor sewer that will carry it to a treatment facility....
 4.14.05



Collison Nebulizer

A device used for atomizing liquids in order to turn them into aerosols. Droplets of a liquid substance are impacted against the inside of a canister at high-velocity to create a refined gas that can be administered via a controlled air stream....
 5.17.07



Colloid

A stable dispersion of molecular aggregates in water that have a size ranging between one hundred and two hundred millimicrons. Colloidal iron, aluminum and silica are commonly found in water....
 4.14.05



Color Rendering Index (CRI)

An international reference system for comparing the color rendering properties of lamps. To determine CRI, a light source is compared to a reference source of similar color temperature and assigned a number. A source with a CRI number approaching 100 ...
 4.14.05



Commissioning

Commissioning is a quality assurance process of the installation of the systems in a building. It is a process for achieving, verifying, and documenting the performance of each system to meet the operational needs of the building within the capabilities o...
 4.22.05



Common Carrier

An organization (such as a telephone operating company) that provides communication services to the general public at nondiscriminatory rates, without control of message content. See also Bypass....
 4.14.05



Community Relations

Community relations at Motorola has found it very useful to appoint a senior facility manager to act on behalf of all facility operations in dealing with the local communities, local utility companies and so forth. This person's job is to go out durin...
 4.19.05



Community Relations Plan (CRP)

Required by the 1980 Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) in the event of a hazardous materials release or threat of release. The plan specifies the communication activities to be undertaken and provides for pu...
 4.19.05



Comparative Neuroimaging

The process of utilizing magnetic resonance imaging (MRI) technology to study and map anatomical abnormalities of the brain associated with mental illness. The study of the etiology and pathophysiology of mental illness using non-invasive ultra-high-field...
 7.22.05



Complementary Metal-Oxide-Semiconductor Devices (CMOS)

CMOS is a common, low-cost method for producing semiconductors. This is the microelectronics technology used in almost all microprocessors, application-specific integrated circuits (ASICS), field-programmable gate arrays FPGAs), and memory products. CMOS ...
 2.3.04



Componentry

Elements of office or laboratory furniture such as storage cabinets and work surfaces that are hung from walls, partial-height partitions or frames. Componentry excludes seating....
 4.19.05



Comprehensive Environmental Response, Compensation andLiability Act (CERCLA)

Passed in 1980, this is the original Superfund law, that committed $1.6 billion to the long-term, permanent cleanup of the United States' worst hazardous waste sites. CERCLA, which was amended and reauthorized in 1986 by the Superfund Amendments and R...
 4.19.05



Comprehensive Environmental Response, Compensation andLiability Act Information System (CERCLIS)

The Environmental Protection Agency's computerized database that tracks the status of suspected hazardous waste sites. ...
 4.19.05



Compression

The technique used to reduce bandwidth and memory when transmitting information....
 7.27.01



Computational Biology

A new field created by the mixing of molecular biology and computer science. Used for example, in gene sequence analysis....
 1.22.04



Computational Fluid Dynamics

Computational Fluid Dynamics (CFD) simulation is used to determine the efficacy of different airflow configurations during building design. ...
 2.21.03



Computational Simulations of Nanoindentation

Materials can be idealized as uniform bodies or discretized into groups of atoms. Modeling indentation with both of these concepts of materials allows a better understanding of how materials respond to nanocontact. ...
 8.7.03



Computational Simulations of Surface Absorption

Quantum mechanics can be used to model the absorption of a molecule onto a surface. ...
 8.7.03



Computed Tomography

CT Scan. A series of detailed pictures of areas inside the body taken from different angles; the pictures are created by a computer linked to an x-ray machine. Also called computerized tomography and computerized axial tomography (CAT) scan. ...
 7.22.05



Computer Aided Design & Drafting (CADD)

The analysis, design, modeling, simulation, and/or layout of building design with the aid of a computer. (Dictionary of Architecture & Construction, 2E © 1993, 1975 McGraw Hill Inc.)...
 7.24.01



Computer Integrated Manufacturing

When a manufacturing process in an organization has all of its systems linked by computer....
 3.2.05



Computer Terminals

Companies building new R&D facilities have to provide ample space for functions that are growing faster than the R&D organization as a whole. One function often allotted insufficient square footage in most organizations is technical computing....
 4.19.05



Computer-Aided Design (CAD)

The production of engineering or architectural plans, drawings, visual displays, specifications, bills of materials, etc., using an interactive computer system and operator-provided numerical input. With regards to CAD training, it has been said that t...
 4.19.05



Computer-Aided Facilities Management (CAFM)

The combination of CADD, database management and specialized software for space planning and optimization, forecasting and other functions performed by facility planning and management professionals....
 4.19.05



Computer-Aided Manufacturing (CAM)

The discipline of programming and using computers to control production machinery such as robots, service machines and numerically controlled machine tools, and to perform related production planning and control functions such as cost estimating, job ...
 3.7.05



Concrete Masonry Unit (CMU)

A block cast from portland cement and aggregate intended to be used in stone masonry construction....
 4.19.05



Condition Monitoring

See Predictive Maintenance....
 2.21.03



Conductive Coating

A coating specially formulated to conduct static electricity....
 4.19.05



Confined Space

"Confined space" means a space that (1) is large enough and so configured that an employee can bodily enter and perform assigned work; (2) has limited or restricted means for entry or exit (for example, tanks, vessels, silos, storage bins, hoppers, vaults...
 7.22.03



Confocal Microscope

A microscope that uses a Nipkow disk or a laser to produce point-probing raster scanning, yielding images with very high contrast in the third dimension. A small aperture at the secondary focus of the objective lens narrows the depth of focus and obstruct...
 2.3.04



Constant Pressure Control

A control system for maintaining proper room pressurization. The system causes dampers or fans to react when the pressure in a room changes (for example, when a door opens)....
 4.19.05



Constant Volume Bypass

An "opening" in a wall that allows the air flow between rooms to remain constant whether doors are opened or closed. In the animal field these openings are called "transfer grilles."...
 7.18.05



Constant-Volume Reheat System

An air-conditioning system that maintains space temperature conditions based on a fixed flow of air to each space or zone, but with a variable temperature supplied to each zone. Temperature variations are provided by a reheat device—for example hot ...
 4.19.05



Construction Cost

The cost of all of the construction portions of a project, generally based upon the sum of the construction contract or contracts and other direct construction costs. The construction cost does not include the compensation paid to the architect and co...
 4.19.05



Construction Documents

The third of an architect's basic services. Working drawings and specifications are prepared for approval by the owner prior to bidding....
 1.22.04



Construction Industry Cost Effectiveness Program (CICEP)

Various forms of contracting for new construction in which the owner contracts for and entrusts to a third party various management functions that are intended to control or reduce project costs and time and to assure construction quality....
 4.19.05



Construction Management

The process of applying management techniques to the design and construction of a project. Generally involves coordinating the overlap of the project's design and construction phases and the activities of multiple prime building contractors. (FM Handbook,...
 9.17.07



Contained Drain System

A segregated, closed drain system for the removal and subsequent collection of biological waste that will eventually either be chemically and/or physically decontaminated before it is introduced into the sewer system....
 4.19.05



Container

A term used by designers to refer to a set of physical boundaries that encloses three-dimensional space. A container can be an entire building or the space on a single floor or in a room....
 4.19.05



Containment Housing

Housing for research animals that protects the environment from contaminants within; accomplished through procedure and facility design. In contrast, barrier housing protects the animals from outside contamination....
 4.19.05



Contamination

The introduction of something unwanted; e.g. chemicals, virus. ...
 2.22.03



Contingency Cost

A cost included in estimation to cover unforeseen cost elements. A fee to offset potential losses incurred. ...
 3.16.04



Continuous Hinge

Also piano hinge. A hinge of the same length as the door to which it is attached....
 4.19.05



Contract Administration

Also construction phase. The fifth of an architect's basic services. General administration of the construction contract(s)....
 1.22.04



Contract Research

Scientific and engineering research services performed by or for others under the terms of a contract. Utilizes the skills, knowledge and capital assets of others without long-term obligations on the part of the purchaser....
 4.19.05



Contrast

In lighting, the relationship between the brightness of an object and its immediate background. An example of this would be the relationship between the letters printed on this page and the paper itself. An example of poor contrast would be a third or ...
 4.19.05



Control Point

The basic remote signal generator for environmental control in a computer-controlled building system....
 4.19.05



Control Point Adjustment

In information systems, the procedure for changing the operating point of a local loop controller from a remote station through the use of a pneumatic or electronic control-setting device....
 4.19.05



Conversion Rate

In water systems, a quantification of the relationship between the volume of feed and product water of a reverse-osmosis membrane. ...
 4.19.05



Cooling Electricity Use

Amount of electricity used to meet the building cooling load....
 4.19.05



Cooperative Research Centre

A building that houses two or more organizations that benefit both from R&D collaboration, but also from facility economics. These centers are established with government funding (i.e. grants) and differ from other research funding in that the centre is i...
 9.28.05



Core Drill

A process for drilling through concrete. A solid cylindrical "core" is removed in the process of cutting the hole, similar to an apple core. Core drilling is used to bore holes ranging from two-to-six inches in diameter for wiring poke-throughs or other u...
 7.25.01



Core Support Room

In research facilities: a central-services room that holds common equipment used by many laboratories. Ultra-low freezers, refrigerated centrifuges, etc. ...
 1.22.04



Corrective Maintenance

The maintenance which is required when an item has failed or worn out, to bring it back to working order. Corrective maintenance is carried out on all items where the consequences of failure or wearing out are not significant and the cost of corrective ...
 1.29.04



Cost Segregation

A detailed engineering study of a building's walls, flooring, ceiling, plumbing, electrical, lighting, telecommunications and HVAC systems. Assets are grouped under several accelerated depreciation classifications. Then system components are assigned acce...
 8.5.03



Cost-Based Reimbursement

See also Fee for Service....
 7.24.01



Coverage Ratio

A term applied in financial analysis to measure the debt capacity of an organization or institution. Defined as net available cash flow per year divided by annual debt service requirements (principal and interest)....
 4.19.05



CPU

See also Central Processing Unit...
 7.24.01



Cracking

Breaks in a coating that penetrate to the substrate. See also Crazing, Checking, and Alligatoring....
 7.25.01



Crazing

The development of a maze or random pattern of fine cracks in a material's surface caused by extreme cold, internal stresses, or lack of elasticity under external forces of weathering. See also Alligatoring, Checking, and Cracking....
 7.25.01



CRE

Corporate Real Estate...
 3.6.03



Creep

Especially in roofing, the property of a substance that allows it in time to become permanently deformed when subjected to a stress. Creep is greater at higher temperatures; creep at room temperature is sometimes called cold flow. ...
 4.19.05



CRI

See Color Rendering Index. ...
 4.19.05



Crowbar

An electronic circuit that can rapidly sense an overvoltage condition and provide a solid-state low-impedance electrical path to eliminate the transient condition....
 4.19.05



CRP

See Community Relations Plan. ...
 4.19.05



Cryoelectron Microscopy

Microscopy used to view biological structures that are too small for conventional electron microscopy and too large to be resolved by X-ray crystallography. Microscopy that determines three-dimensional structures of large macromolecular assemblies. ...
 3.15.04



Cryogenic Welding

A method of joining pipes and tubing (three-inch diameter or less) without heat, flame or the use of contaminating fluxes. This welding method employs special Raychem nickel alloy fittings that are packed in a cryogenic (cold) storage container; they shri...
 4.19.05



CU

See also Coefficient of Utilization...
 7.24.01



Cubicle

In animal facilities: a space to hold animals, usually large enough to hold only one animal rack, with its own macroenvironment. In offices: personal office space created by the use of modular furniture....
 3.6.03



Cubicle

In animal facilities: a space to hold animals, usually large enough to hold only one animal rack, with its own macroenvironment. In offices: personal office space created by the use of modular furniture....
 7.22.03



Cultures and Stocks

Infectious agents and biologicals including cultures from medical labs, waste from the production of biologicals, discarded live and attenuated vaccines and devices used to transfer, inoculate and mix cultures. ...
 4.19.05



Curie

A measure of the rate at which energy is released by a radioactive material....
 4.19.05



Curies

A unit of measurement for radioactivity....
 9.14.06



Curtain Wall

A wall that is part of the exterior envelope of a building, but isn't a structural component. Usually made of glass, metal or composite panels. The curtain wall provides building aesthetics and the basic weather seal for the building. ...
 4.19.05



Custom- or Site-Built Video Conferencing Room Systems

Permanent facilities designed for specific video conferencing system applications. Contrast with Group or Rollabout Video Conferencing Systems and Desktop Video Conferencing Systems. See also Audio Conferencing and Video Conferencing....
 7.27.01



Cyclotron

A machine used to accelerate beams of charged particles by using alternating voltage across a magnetic field. Cyclotrons are used to develop tracers used in PET scanners and in various cancer treatments. ...
 11.17.04



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