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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 'V'

Vaccine Therapy

A type of treatment that uses a substance or group of substances to stimulate the immune system to destroy a tumor or infectious microorganisms such as bacteria or viruses....
 1.25.08



Vaccinology

The science or methodology of vaccine development. ...
 1.13.06



Validating

See Project Closeout and Commissioning. During design and construction, the design, materials, methods, and performance are evaluated continuously from start to finish....
 3.6.03



Validation

A process used in industries that manufacture drugs, biologicals and medical devices that establishes documented evidence to provide a high degree of assurance that a specific facility and its supporting utilities will consistently meet predetermined spec...
 9.4.07



Value Engineering

A process that identifies and assigns value to the various functions of a product (or facility) and then seeks a final design that maximizes functional value and reliability while minimizing cost....
 3.5.07



Vapor Barrier

A layer of low-permeability material that prevents condensation within building sections....
 6.16.06



Vapor Retarder

Semi-vapor permeable; more permeable than a Vapor Barrier....
 7.29.03



Vapor-phase Hydrogen Peroxide (VHP)

Hydrogen peroxide in the vapor (gas) phase, as distinct from the dilute solution of hydrogen peroxide commonly used as a household disinfectant (normally 10 percent hydrogen peroxide dissolved in distilled water). VHP is used in biodecontamination in a dr...
 7.28.04



Variable Air Volume (VAV)

An HVAC system in which a local thermostat controls room temperature by controlling the volume of fixed-temperature air (heated or cooled) delivered to the room. An advantage of VAV is its operating and first-cost economies. A disadvantage is that fre...
 7.18.05



Variable Frequency Drive (VFD)

A system of controlling HVAC fan speed with motors and controls that change fan speed by varying the frequency of electrical power delivered to the fan motor....
 7.20.01



VAV

See Variable Air Volume. ...
 7.20.01



VAX

Short for Virtual Address eXtension, Digital Equipment Corporation's successor to its PDP-11 line of minicomputers. As its name implies, VAX systems feature an operating system—VMS—that supprts virtual memory. The VAX was introduced in 1977 an...
 3.19.04



VAX, VMS

See Virtual Access Memory, Virtual Memory Storage. ...
 7.20.01



VDT

See Video Display Terminal. ...
 7.20.01



Vector

In biotechnology, the agent used to carry new genes into cells. Plasmids are the current preferred vector....
 4.19.07



Venezuelan Equine Encephalitis (VEE)

An acute, mosquito-borne viral disease that produces fever, aches, and other flu-like symptoms in humans, sometimes progressing to encephalitis in severe cases. VEE also causes serious disease in horses and their biological cousins (donkeys, mules, etc.)....
 7.23.04



Ventilated Rack

A rack that houses animal caging, and provides either or both supply air/exhaust air to each cage. Air-flow management is done to contain hazardous agents within the cage and/or to prevent disease agents from entering the cage....
 7.29.03



Ventilating Blower

A type of Local Exhaust Ventilation. These blowers have inlet and outlet hoses that collect and move contaminated air away....
 9.26.03



Ventilation

A method of removing contaminants from an enclosed space by the process of supplying fresh air so that the existing atmosphere is totally or partially replaced....
 7.28.03



Ventilation Rate

The rate that indoor air enters and leaves a building. Expressed either as the number of changes of outdoor air per unit of time (air changes per hour) or as the rate at which a volume of outside air enters per unit of time (cfm)....
 6.12.06



Venture Leasing

A real estate financing arrangement generally employed for high-growth companies that are beyond the venture capital first stages. In venture leasing, a lessor agrees to a low lease rate in exchange for warrants to purchase the growth company's stock at a...
 11.29.06



Vermin

In an animal facility, wild insects and rodents that are not supposed to be in the facility....
 7.29.03



VFD

See Variable Frequency Drive. ...
 7.20.01



Vibration

Foot traffic vibration can be a serious problem in sensitive R&D environments. An above-grade floor acts somewhat like a trampoline: footfall impact sets the floor in motion, also setting into motion any floor-mounted equipment. Footfalls near the center ...
 1.21.04



Video CODEC

A bandwidth suppression device used to reduce the bandwidth of video signals transmitted via satellite. It requires two pieces of equipment: one to reduce the bandwidth and one to recondition the signal. Achieves significant cost reductions on the use of ...
 7.27.01



Video Conferencing

Communication via telecommunications channels between more than two groups or three individuals. Video conferences can involve fully-interactive video and audio or one-way video and two-way audio. This includes full-motion video, limited motion video, and...
 7.27.01



Video Display Terminal (VDT)

A device for entering information into a computer system and displaying it on a screen. A typewriter-like keyboard is used to enter information (Webster's New World Dictionary of Computer Terms copyright 1994 Simon & Schuster Inc.)...
 9.21.01



Video Wall

A collection of video monitors stacked on top of each other and grouped in rectangular clusters of 9 to 256 monitors. Video walls are usually used in sales, promotional and convention activities....
 1.14.05



Vinyl Acetate Ethylene (VAE)

A copolymer used as a coating, paint, adhesive, and insulation class of emulsion. ...
 9.13.04



Virtual Access Memory, Virtual Memory Storage (VAM/VMS)

A sophisticated software system that provides virtually unlimited memory to a given computer system. A VAX computer continually moves information into and out of the main memory so that the user has instant access to essentially unlimited equipment mem...
 7.20.01



Virtual Office

A briefcase approach to the office; where everything necessary to do work, from fax to phone to laptop computer, is portable. With the ultimate virtual office, employees would work at home and convene periodically to share ideas. This would mean that the ...
 7.25.01



Virus

A type of microorganism that is capable of reproduction and growth only within living cells; it differs from other microorganisms because it has a core of RNA (ribonucleic acid) or DNA (deoxyribonucleic acid) surrounded by a coat of protein. ...
 9.13.04



Vivarium

A facility or part of a facility that is designed to hold animals for laboratory research....
 2.26.07



VOC

See Volatile Organic Compound....
 8.23.06



Voice Over Internet Protocol (VOIP)

Uses computers and LANs via the Internet to route voice communications through telephony. ...
 4.14.05



Voice Switching

An electrical technique for opening an audio circuit only to the person who is currently speaking. The system allows only one person to speak at a time, often without the capability to be interrupted. Voice switching is an effective technique for avoiding...
 7.20.01



Volatile Organic Compound (VOC)

Any organic compound that contributes to atmospheric photochemical reactions....
 8.23.06



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