Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Of or relating to air or other gases.
  • adj. Of or relating to pneumatics.
  • adj. Run by or using compressed air: a pneumatic drill.
  • adj. Filled with air, especially compressed air: a pneumatic tire.
  • adj. Zoology Having cavities filled with air, as the bones of certain birds.
  • adj. Of or relating to the pneuma; spiritual.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of or relating to air or other gases
  • adj. Of or relating to pneumatics
  • adj. Powered by, or filled with compressed air
  • adj. Having cavities filled with air
  • adj. Spiritual; Of or relating to the pneuma
  • adj. well-rounded; full-breasted; bouncy (especially during sex)
  • n. In gnostic theologian Valentinus' triadic grouping of man the highest type; a person focused on spiritual reality (the other two being hylic and psychic).

from the GNU version of the Collaborative International Dictionary of English

  • adj. Consisting of, or resembling, air; having the properties of an elastic fluid; gaseous; opposed to dense or solid.
  • adj. Of or pertaining to air, or to elastic fluids or their properties; pertaining to pneumatics.
  • adj. Moved or worked by pressure or flow of air
  • adj. Fitted to contain air; Having cavities filled with air
  • adj. Adapted for containing compressed air; inflated with air.
  • n. A vehicle, as a bicycle, the wheels of which are fitted with pneumatic tires.

from The Century Dictionary and Cyclopedia

  • Of or pertaining to air, or gases in general, or their properties; also, employing (compressed) air or other gas as a motive power, as, pneumatic experiments; a pneumatic engine.
  • Consisting of or resembling air; having the properties of an elastic fluid; gaseous.
  • Moved or played by means of air: as, a pneumatic instrument of music.
  • In zoology: Filled with air; fitted to receive or contain air; pneumatized, as the air-cells or the bones of birds
  • Of or pertaining to the respiratory system of any animal
  • A caisson within which compressed air excludes the water, permitting necessary operations to be carried on inside it.
  • n. In organ-building, one of the members of a pneumatic action, whether a bellows or a tube. See pneumatic action, above.
  • n. Same as pneumatology, 2, where see quotation.
  • In theology, relating to the spirit or pneuma, as distinguished from both soul and body; spiritual. See soul and spirit.
  • n. An inflatable rubber tire.
  • n. A vehicle, as a bicycle, motor-cycle, or motorcar, lifted with inflatable rubber tires.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. of or relating to or using air (or a similar gas)

Etymologies

French pneumatique, from Latin pneumaticus, from Greek pneumatikos, from pneuma, pneumat-, wind; see pneu- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin pneumaticus, from Ancient Greek πνευματικός (pneumatikos, "relating to wind or air"), from πνεῦμα (pneuma, "wind, air, breath, spirit"), from πνέω (pneō, "I blow, breath"). (Wiktionary)

Examples

  • It's fitted with what they call a pneumatic cushion -- I mean, if anything goes wrong, the lift falls into a funnel shaped well, made of concrete, which forms a cushion of air, and so breaks the fall.

    The Mystery of the Four Fingers

  • Baltic newts are equipped with a new, normally peaceful, apparatus called the pneumatic drill which is capable of drilling ten metres deep into the best Swedish granite in an hour and can penetrate fifty or sixty metres deep into English chalk in the same time?

    The War with the Newts

  • "I wasn't sure about the word pneumatic," Allison Black said.

    The Times-Journal: News

  • Air tools are also sometimes called pneumatic tools.

    My daily life experience...

  • He collected the gas that this reaction released with an instrument known as a pneumatic trough.

    Citizendium, the Citizens' Compendium - Recent changes [en]

  • According to Pemex, 42% of natural gas is currently consumed in Pemex's own processes, such as pneumatic pumping in oil fields, while 31% goes to private industry, 22% to the power industry and the remainder to small businesses and households.

    Lloyd Mexico Economic Report - May 2000

  • I may have thought of a solution: some kind of pneumatic/hydraulic damper mechanism.

    Make - All Discussions

  • Compressed air lines for operating machinery, such as pneumatic tools.

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  • While there have been many useful innovations such as pneumatic tires and variable shifting, today's diamond-framed bicycle would remain recognizable to those who participated in bicycling's first Golden Age.

    PezCyclingNews.com

  • Jardis also provides a line of productivity enhancements such as pneumatic throw-offs, motorized register controls, infeeds and ribbon decks

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  • "A third nurse, a pneumatic black girl in pale pink..." Water for Elephants by Sara Gruen

    October 17, 2010