• synonyms


[noo-mat-ik, nyoo-]
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  1. of or relating to air, gases, or wind.
  2. of or relating to pneumatics.
  3. operated by air or by the pressure or exhaustion of air: a pneumatic drill.
  4. filled with or containing compressed air, as a tire.
  5. equipped with pneumatic tires.
  6. Theology. of or relating to the spirit; spiritual.
  7. Zoology. containing air or air cavities.
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  1. a pneumatic tire.
  2. a vehicle having wheels with such tires.
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Origin of pneumatic

1650–60; < Latin pneumaticus < Greek pneumatikós pertaining to air, breath or wind, spiritual, equivalent to pneumat- (stem of pneûma; see pneuma) + -ikos -ic
Related formspneu·mat·i·cal·ly, adverbpneu·ma·tic·i·ty [noo-muh-tis-i-tee, nyoo-] /ˌnu məˈtɪs ɪ ti, ˌnyu-/, nounnon·pneu·mat·ic, adjectivenon·pneu·mat·i·cal·ly, adverbsem·i·pneu·mat·ic, adjectiveun·pneu·mat·ic, adjectiveun·pneu·mat·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for pneumatic

aerial, atmospheric, blowy, breezy, exposed, fresh, gaseous, gusty, light, lofty, vaporous, ventilated, windy, drafty, out-of-doors, uncluttered, well-ventilated

Examples from the Web for pneumatic

Contemporary Examples of pneumatic

Historical Examples of pneumatic

British Dictionary definitions for pneumatic


  1. of or concerned with air, gases, or windCompare hydraulic
  2. (of a machine or device) operated by compressed air or by a vacuuma pneumatic drill; pneumatic brakes
  3. containing compressed aira pneumatic tyre
  4. of or concerned with pneumatics
  5. theol
    1. of or relating to the soul or spirit
    2. of or relating to the Holy Ghost or other spiritual beings
  6. (of the bones of birds) containing air spaces which reduce their weight as an adaptation to flying
  7. informal (of a woman) well rounded, esp with a large bosom
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  1. short for pneumatic tyre
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Derived Formspneumatically, adverb

Word Origin for pneumatic

C17: from Late Latin pneumaticus of air or wind, from Greek pneumatikos of air or breath, from pneuma
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for pneumatic


1650s, from Latin pneumaticus "of the wind, belonging to the air," from Greek pneumatikos "of wind or air" (which is attested mainly as "of spirit, spiritual"), from pneuma (genitive pneumatos) "the wind," also "breath" (see pneuma). Earlier was pneumatical (c.1600).

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Online Etymology Dictionary, © 2010 Douglas Harper

pneumatic in Medicine


  1. Of or relating to air or other gases.
  2. Relating to respiration.
  3. Relating to a structure that is filled with air.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

pneumatic in Science


  1. Relating to gases, especially air.
  2. Filled with or operated by compressed air. Pneumatic machines often involve the transmission of force through air pressure in pipes or tubes. See also hydraulic.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.