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vacuum

 [vak´u-um]
a space devoid of air or other gas.

vac·uum

(vak'yūm),
An empty space, one practically exhausted of air or gas.
[L. ntr. of vacuus, empty]

vacuum

/vac·u·um/ (vak´ūm) [L.] a space devoid of air or of other gas; a space from which the air has been exhausted.

vac·u·um

(vak'yūm)
An empty space, one practically exhausted of air or gas.
[L. ntr. of vacuus, empty]

vac·u·um

(vak'yūm)
An empty space, one practically exhausted of air or gas.
[L. ntr. of vacuus, empty]

vacuum,

vacuum

a space devoid of air or other gas.

vacuum collection
use of a handheld vacuum to recover ectoparasites from the coat of animals.
vacuum-dehydrated
freed of moisture while in a vacuum. Used in the packaging of food.
vacuum gauge
pressure gauge in a milking machine which indicates the level of vacuum in the system.
vacuum pack
meat or other perishable food is packed in a tightly sealed bag made of copolymers with polyvinyldene chloride and a low vacuum created. A bag made of nylon-polythene laminate is used for bags that are heat-sealed and a high vacuum created. The pack is then frozen for storage or shipment.
vacuum pressure
used as the basis of the modern milking machine; the negative pressure is generated by a vacuum pump and transmitted through metal and rubber pipes to the teat cups and thence to the teats; the continuous basic pressure is what keeps the teat cups on the teats; the periodic fluctuations is what causes the squeezing of the teat walls and the expulsion of the milk from the teats.
vacuum therapy
see cupping.
vacuum tube
many clinical pathology specimens are now collected in evacuated test tubes. A needle connected to the tube through a rubber stopper is passed into a vein. The needle is then connected to the vacuum and the blood or other fluid withdrawn.
References in periodicals archive ?
Air and vacuum work together to make everything happen in a resin conveying system.
Although Above & Beyond owners are well known in Thornton, Aurora and Centennial as high-end vacuum dealers, residents can also have their existing vacuum serviced, along with getting almost any vacuum accessory through either store.
Because industrial vacuums suck up tons of material hour housekeeping gets done much faster and there is no need to manually clean up dust and debris that common shop vacuums leave behind.
A number of aspects of the model contain considerable uncertainty: the cost and time of the fumigation plan, the indoor spatial deposition after an attack, the reaerosolization and deposition rates inside a room, spore dynamics in a duct, air-cleaning efficacy, vacuum efficacy, Hazmat logistics, the spatial heterogeneity in sampling, vaccine coverage, and the low end of the dose-response curve.
Some applications require sophisticated customized vacuum cleaner installations.
Be sure to vacuum these carpets every day and dry-clean them at least weekly.
How a solidly built or rebuilt 20-year-old vacuum cleaner is far superior and can last a lifetime.
In development for the past six years, the robot vacuum uses built-in sonar to navigate and clean a room.
First bubble method--Yet another reduced pressure test, this one requires a small melt sample to be placed in a vacuum chamber.
Best Vacuum specializes in high quality HEPA vacuums from the top manufacturers, including the aforementioned Miele, Dyson, and Sebo.
Shark (832) ranks highest in customer satisfaction with upright vacuum brands for a second consecutive year.
Vacuum cleaners, even high quality brand names, eventually need to be replaced, as technology advancements and stronger materials come in to the market.