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Vacuity
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vacuolar
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vacuously
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Vacuum definitions

Webster's 1828 Dictionary

VAC'UUM, n. [L.] Space empty or devoid of all matter or body. Whether there is such a thing as an absolute vacuum in nature, is a question which has been much controverted. The Peripatetics assert that nature abhors a vacuum.
Torricellian vacuum, the vacuum produced by filling a tube with mercury, and allowing it to descend till it is counterbalanced by the weight of the atmosphere, as in the barometer invented by Torricelli.

WordNet (r) 3.0 (2005)

n
1: the absence of matter [syn: vacuum, vacuity]
2: an empty area or space; "the huge desert voids"; "the emptiness of outer space"; "without their support he'll be ruling in a vacuum" [syn: void, vacancy, emptiness, vacuum]
3: a region that is devoid of matter [syn: vacuum, vacuity]
4: an electrical home appliance that cleans by suction [syn: vacuum, vacuum cleaner] v
1: clean with a vacuum cleaner; "vacuum the carpets" [syn: vacuum, vacuum-clean, hoover]

Merriam Webster's

I. noun (plural vacuums or vacua) Etymology: Latin, from neuter of vacuus empty, from vacare to be empty Date: 1550 1. emptiness of space 2. a. a space absolutely devoid of matter b. a space partially exhausted (as to the highest degree possible) by artificial means (as an air pump) c. a degree of rarefaction below atmospheric pressure 3. a. a state or condition resembling a vacuum ; void <the power vacuum in Indochina after the departure of the French — Norman Cousins> b. a state of isolation from outside influences <people who live in a vacuum…so that the world outside them is of no moment — W. S. Maugham> 4. a device creating or utilizing a partial vacuum; especially vacuum cleaner II. adjective Date: 1825 1. of, containing, producing, or utilizing a partial vacuum <separated by means of vacuum distillation> 2. of or relating to a vacuum device or system III. verb Date: 1922 transitive verb 1. to use a vacuum device (as a vacuum cleaner) on <vacuum the living room> 2. to draw or take in by or as if by suction intransitive verb to operate a vacuum device

Oxford Reference Dictionary

n. & v. --n. (pl. vacuums or vacua) 1 a space entirely devoid of matter. 2 a space or vessel from which the air has been completely or partly removed by a pump etc. 3 a the absence of the normal or previous content of a place, environment, etc. b the absence of former circumstances, activities, etc. 4 (pl. vacuums) colloq. a vacuum cleaner. 5 a decrease of pressure below the normal atmospheric value. --v. colloq. 1 tr. clean with a vacuum cleaner. 2 intr. use a vacuum cleaner. Phrases and idioms: vacuum brake a brake in which pressure is caused by the exhaustion of air. vacuum-clean clean with a vacuum cleaner. vacuum cleaner an apparatus for removing dust etc. by suction. vacuum flask Brit. a vessel with a double wall enclosing a vacuum so that the liquid in the inner receptacle retains its temperature. vacuum gauge a gauge for testing the pressure after the production of a vacuum. vacuum-packed sealed after the partial removal of air. vacuum pump a pump for producing a vacuum. vacuum tube a tube with a near-vacuum for the free passage of electric current. Etymology: mod.L, neut. of L vacuus empty

Webster's 1913 Dictionary

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.

Collin's Cobuild Dictionary

(vacuums, vacuuming, vacuumed) 1. If someone or something creates a vacuum, they leave a place or position which then needs to be filled by another person or thing. His presence should fill the power vacuum which has been developing over the past few days. N-COUNT: usu sing, oft supp N 2. If something is done in a vacuum, it is not affected by any outside influences or information. Moral values cannot be taught in a vacuum... PHRASE: PHR after v 3. If you vacuum something, you clean it using a vacuum cleaner. I vacuumed the carpets today... It's important to vacuum regularly. VERB: V n, V 4. A vacuum is a space that contains no air or other gas. N-COUNT: usu sing

Soule's Dictionary of English Synonyms

n. Void, empty space, vacuity.

Moby Thesaurus

absence, absence of mind, blank, blankness, broom, brush, brush off, clean slate, deprivation, emptiness, empty space, empty-headedness, hollowness, inanity, jejunity, mental void, negation, negativeness, negativity, nihility, nonbeing, nonentity, nonexistence, nonoccurrence, nonreality, nonsubsistence, not-being, nothing, nothingness, nullity, sweep, sweep out, sweep up, tabula rasa, unactuality, unreality, vacancy, vacuity, vacuousness, vacuum-clean, vapidity, void, whisk



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