Definition of Vacuum. Meaning of Vacuum. Synonyms of Vacuum

Here you will find one or more explanations in English for the word Vacuum. Also in the bottom left of the page several parts of wikipedia pages related to the word Vacuum and, of course, Vacuum synonyms and on the right images related to the word Vacuum.

Definition of Vacuum

Vacuum
Vacuum Vac"u*um, n.; pl. E. Vacuums, L. Vacua. [L., fr. vacuus empty. See Vacuous.] 1. (Physics) A space entirely devoid of matter (called also, by way of distinction, absolute vacuum); hence, in a more general sense, a space, as the interior of a closed vessel, which has been exhausted to a high or the highest degree by an air pump or other artificial means; as, water boils at a reduced temperature in a vacuum.

Meaning of Vacuum from wikipedia

- perfect vacuum, which they sometimes simply call "vacuum" or free space, and use the term partial vacuum to refer to an actual imperfect vacuum as one...
- A vacuum cleaner, also known simply as a vacuum or a hoover, is a device that causes suction in order to remove debris from floors, upholstery, draperies...
- A vacuum tube, an electron tube, valve (British usage) or tube (North America), is a device that controls electric current flow in a high vacuum between...
- In quantum field theory, a false vacuum is a hypothetical vacuum that is not actively decaying, but somewhat yet not entirely stable ("metastable"). It...
- commonly called the vacuum permittivity, permittivity of free space or electric constant or the distributed capacitance of the vacuum, is an ideal, (baseline)...
- A vacuum truck or vacuum tanker is a tank truck that has a pump and a tank. The pump is designed to pneumatically suck liquids, sludges, slurries, or the...
- the vacuum permeability, permeability of free space, permeability of vacuum, or magnetic constant, is the magnetic permeability in a cl****ical vacuum. Vacuum...
- In quantum field theory, the quantum vacuum state (also called the quantum vacuum or vacuum state) is the quantum state with the lowest possible energy...
- chromodynamic vacuum (QCD vacuum), a non-perturbative vacuum Quantum electrodynamic vacuum (QED vacuum), a field-theoretic vacuum Quantum vacuum (ground state)...
- Vacuum ****ng is a method of packaging that removes air from the package prior to sealing. This method involves (manually or automatically) placing items...
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