Definitions of vacuum

  1. the absence of matter
  2. a region empty of matter
  3. an electrical home appliance that cleans by suction
  4. an empty area or space; " the huge desert voids"; " the emptiness of outer space"; " without their support he'll be ruling in a vacuum"
  5. clean with a vacuum cleaner; " vacuum the carpets"
  6. 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.
  7. The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, as the condenser of a steam engine, which is nearly exhausted of air or steam, etc.; as, a vacuum of 26 inches of mercury, or 13 pounds per square inch.
  8. 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.
  9. A space entirely empty of matter; hence, a space, such as the inside of a bottle, emptied of air by artificial mean.
  10. An enclosure having no air.
  11. A vacant or empty space: a space empty or devoid of all matter:- pl. VACUA.
  12. Empty space.
  13. Vacant or empty space; a space or vessel from which the air has been exhausted.
  14. Space empty or devoid of all matter or body. Torricellian vacuum, the empty space at the top of a barometric tube. See Vacant.
  15. A space empty or devoid of matter, solid or aeriform; in vacuo, in empty space.

Usage examples for vacuum

  1. Following the awful report, the terrific recoil and the howl of the wind as it rushed into the vacuum created, there was an intense silence. – Tom Swift and his Giant Cannon or, The Longest Shots on Record by Victor Appleton
  2. Suppose the dial vacuum gauge shows 10 lbs. – Modern Machine-Shop Practice, Volumes I and II by Joshua Rose
  3. Nov 25, 1881 251, 536 Vacuum Pump. – Edison, His Life and Inventions by Frank Lewis Dyer and Thomas Commerford Martin
  4. Inspector Steed, A division, said that upon examining the gates of the principal entrance of the Palace, he found that, at the Marble Arch, there was a vacuum sufficient to admit a boy into the Palace, without any inconvenience. – Gossip in the First Decade of Victoria's Reign by John Ashton
  5. On this same floor is the vacuum pump room with a glass- blowers' room adjoining, both of them historic by reason of the strenuous work done on incandescent lamps and X- ray tubes within their walls. – Edison, His Life and Inventions by Frank Lewis Dyer and Thomas Commerford Martin
  6. We know the comet's tail is so rarefied that it resembles a pretty fair vacuum but it is composed of something. – The Year When Stardust Fell by Raymond F. Jones
  7. I was conscious of the gaping vacuum in my skull with every fibre of my being. – Hunger by Knut Hamsun
  8. He was cut down just as he began to enjoy the fruits of his labors- in the prime of life and left a vacuum in society not readily filled. – Sages and Heroes of the American Revolution by L. Carroll Judson
  9. I had remarked so plainly that, whenever I had been hungry for any length of time, it was just as if my brains ran quite gently out of my head and left me with a vacuum my head grew light and far off, I no longer felt its weight on my shoulders, and I had a consciousness that my eyes stared far too widely open when I looked at anything. – Hunger by Knut Hamsun
  10. He built up the elements of a vacuum tube such as is normally found only in a landing grid control room. – The Pirates of Ersatz by Murray Leinster
  11. " Yes; staring into the vacuum you were talking of just now; it all comes back to that," said Hardy. – Tom Brown at Oxford by Thomas Hughes
  12. In addition to the street car company the United States is represented by the Standard Oil Company, the Vacuum Oil Company, and the New York Export and Import Company. – Modern India by William Eleroy Curtis
  13. It seemed as if the very foundations of the fortifications would be shattered There was a roaring in the air- a hot burst of flame, and instantly such a vacuum was created that Tom and Ned found themselves gasping for breath. – Tom Swift and his Giant Cannon or, The Longest Shots on Record by Victor Appleton
  14. But they certainly couldn't hear him through the vacuum – Sjambak by John Holbrook Vance
  15. We must hold attention to the drill process, and yet attention abhors monotony as nature abhors a vacuum – Craftsmanship in Teaching by William Chandler Bagley
  16. Because, my dear Captain, we are moving through a vacuum and because all bodies fall or move- the same thing- with equal velocity through a vacuum no matter what may be their shape or their specific gravity. – All Around the Moon by Jules Verne
  17. Her fingers touch one of the hairs of our head, and we feel as if the air had left us, and we were in a vacuum – Pictures of Sweden by Hans Christian Andersen
  18. This occurred every two or three minutes, and, remembering what Thorwald had previously told us, we realized that we were riding in a perfectly tight car in a vacuum tube and that these short but frequent stops were to keep us supplied with fresh air. – Daybreak: A Romance of an Old World by James Cowan
  19. You might as well talk of breathing in a vacuum – Trumps by George William Curtis
  20. How does it create a vacuum – The Firm of Girdlestone by Arthur Conan Doyle