(1) Space devoid of atoms or molecules. (2) Emptying of air.

A volume which contains no matter.

1540s, "emptiness of space," from Latin vacuum "an empty space, vacant place, a void," noun use of neuter of vacuus "empty, unoccupied, devoid of," figuratively "fre [..]

"to clean with a vacuum cleaner," 1919, from vacuum (n.). Related: Vacuumed; vacuuming.

clean with a vacuum cleaner; "vacuum the carpets" the absence of matter void: an empty area or space; "the huge desert voids"; "the emp [..]

a space with no air in it

A volume of space that is essentially empty of matter, such that its gaseous pressure is much lower than atmospheric pressure.

Space which is entirely devoid of matter.

a space filled with nothing, not even air

In the strict sense of the word, a vacuum describes an empty space in which there are no particles. The idea of a vacuum is ultimately not understood in the considerations of the Quantum Field Theory and the General Theory of Relativity.

Method used to pick notes from cassettes during dispensing

A region of space that contains no matter. A vacuum cleaner.

(n) the absence of matter(n) an empty area or space(n) a region that is devoid of matter(n) an electrical home appliance that cleans by suction(v) clean with a vacuum cleaner

A space that is entirely devoid of matter (Lessons 8, 15, 17, 19, 22, 28, 30)

a space from which all gas and other matter has been removed

A technical vacuum is no volume free from matter, but a gas volume at low pressure, characterized by a much increased free waypath of all particles before a collision with other particles takes place. While under atmospheric pressure the mean free waypath between two impacts of particles is below 1 micron, it is more than 10 cm below 10-3 mbar. Tha [..]

Any pressure below atmospheric pressure.

Any pressure less than atmospheric. Can present a problem for the elastomer in many seal applications.

pressure that is less than atmospheric pressure.

A space where the pressure is significantly below that of standard atmospheric pressure.

Any pressure below atmospheric pressure.

A space where the pressure is significantly below that of standard atmospheric pressure.

A pressure below atmospheric pressure. 30 inches Mercury (periodic symbol "Hg") is a perfect vacuum.

any pressure below atmospheric pressure.

A pressure below atmospheric pressure.

A vacuum is a space that has no pressure and no molecules inside. It is truly and empty space. Although space has a very low pressure (almost a vacuum), there are still particles out there. More Infor [..]

A pressure below atmospheric pressure. A perfect vacuum is 30 inches of mercury (periodic symbol “Hg”).

An enclosed space entirely devoid of matter, especially air that has been partially removed so that the matter or gas remaining in the space exerts less pressure than the atmosphere.

A pressure below atmospheric pressure. 30 inches Mercury (periodic symbol “Hg”) is a perfect vacuum.

 Devices that use suction to collect dirt from the bottom and sides of a pool or spa. Most common is a vacuum head with wheels that attaches to a telepole and is connected to the suction line, usually [..]

A pressure below atmospheric pressure. 30 inches Mercury (periodic symbol "Hg") is a perfect vacuum.

A pressure below atmospheric pressure. 30 inches Mercury (periodic symbol "Hg") is a perfect vacuum. Back to the top.

A pressure below atmospheric pressure. 30 inches Mercury (periodic symbol "Hg") is a perfect vacuum. Back to the top.

A pressure below atmospheric pressure. A perfect vacuum is 30 inches of mercury (periodic symbol “Hg”).

A space in which the Pressure is far below Atmospheric Pressure so that the remaining Gases do not Affect processes being carried on in the space.

A space in which the pressure is far below atmospheric pressure so that the remaining gases do not affect processes being carried on in the space.

A physical treatment for food preservation. In the RESFOOD project, it is used together with the application of positive pressures, to test the most suitable sanitizing agent on porous foods such as leafy vegetables.

Space that is empty of matter. Electromagnetic waves can propagate freely in a vacuum. 

Any pressure below atmospheric pressure.

A space containing no matter.

An enclosed area in which the air pressure is below that of the surrounding atmospheric pressure.

Reduction in pressure below atmospheric pressure.

A pressure below atmospheric pressure. 30 inches Mercury (periodic symbol "Hg") is a perfect vacuum.

 A pressure below atmospheric pressure. 30 inches Mercury (periodic symbol “Hg”) is a perfect vacuum.

A pressure below atmospheric pressure. 30 inches Mercury (periodic symbol "Hg") is a perfect vacuum.

This term is used in the cleaning industry to indicate suction or more accurately airflow through a vacuum cleaner. (See "Airflow" and "Suction".)

A 3-dimensional space that contains no matter.

An enclosed space which contains no air.

Pressure lower than atmospheric pressure.

Vacuum is space devoid of matter. The word stems from the Latin adjective vacuus for "vacant" or "void". An approximation to such vacuum is a region with a gaseous pressure much le [..]

Vacuum is the name of a Swedish pop band. The members are Mattias Lindblom and Anders Wollbeck. They also work as song writers and producers under the same name. As songwriters and producers Wollbeck [..]

Vacuum is space devoid of matter. The word stems from the Latin adjective vacuus for "vacant" or "void". An approximation to such vacuum is a region with a gaseous pressure much le [..]

Vacuum is the absence of matter. Vacuum may also refer to: Vacuum cleaner, a home appliance which uses suction to remove dirt Vacuum flask, an insulated storage vessel Vacuum (outer space), the very h [..]