Dictionary > English Dictionary > Definition, synonym and antonym of pneumatic
Meaning of pneumatic by Wiktionary Dictionary


    Alternative forms


    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” ) .


    • IPA: /nʊˈmæ.tɪk/


    pneumatic ( not comparable )

    1. Of or relating to air or other gases
    2. Of or relating to pneumatics
    3. Powered by, or filled with compressed air
    4. ( zoology ) Having cavities filled with air
    5. Spiritual; Of or relating to the pneuma
    6. ( of a woman ) well-rounded; full-breasted; bouncy ( especially during sex )
      "Every one says I'm awfully pneumatic," said Lenina reflectively, patting her own legs. - Aldous Huxley - Brave New World ( chapter 6 )

    Related terms


    pneumatic ( plural: pneumatics )

    1. ( Gnosticism ) In gnostic theologian Valentinus' triadic grouping of man the highest type; a person focused on spiritual reality ( the other two being hylic and psychic ) .

    External links

Explanation of pneumatic by Wordnet Dictionary


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

    2. pneumatic drill
      pneumatic tire

    Definition of pneumatic by GCIDE Dictionary


    1. Pneumatic n. A vehicle, as a bicycle, the wheels of which are fitted with pneumatic tires. [archaic]

    2. Pneumatic Pneumatical a. [L. pneumaticus, Gr. , fr. , , wind, air, to blow, breathe; cf. OHG. fnehan: cf. F. pneumatique. Cf. Pneumonia.]
      1. Consisting of, or resembling, air; having the properties of an elastic fluid; gaseous; opposed to dense or solid.

      The pneumatical substance being, in some bodies, the native spirit of the body. Bacon.

      2. Of or pertaining to air, or to elastic fluids or their properties; pertaining to pneumatics; as, “pneumatic experiments”. “Pneumatical discoveries.” Stewart.

      3. Moved or worked by pressure or flow of air; as, “a pneumatic instrument; a pneumatic engine.”

      4. ( Biol. ) Fitted to contain air; Having cavities filled with air; as, “pneumatic cells; pneumatic bones.”

      5. Adapted for containing compressed air; inflated with air; as, “a pneumatic cushion; a pneumatic tire, a tire formed of an annular tube of flexible fabric, as India rubber, suitable for being inflated with air”.

      Pneumatic action, or Pneumatic lever ( Mus. ), a contrivance for overcoming the resistance of the keys and other movable parts in an organ, by causing compressed air from the wind chest to move them. -- Pneumatic dispatch, a system of tubes, leading to various points, through which letters, packages, etc., are sent, by the flow and pressure of air. -- Pneumatic elevator, a hoisting machine worked by compressed air. -- Pneumatic pile, a tubular pile or cylinder of large diameter sunk by atmospheric pressure. -- Pneumatic pump, an air-exhausting or forcing pump. -- Pneumatic railway. See Atmospheric railway, under Atmospheric. -- Pneumatic syringe, a stout tube closed at one end, and provided with a piston, for showing that the heat produced by compressing a gas will ignite substances. -- Pneumatic trough, a trough, generally made of wood or sheet metal, having a perforated shelf, and used, when filled with water or mercury, for collecting gases in chemical operations. -- Pneumatic tube. See Pneumatic
      dispatch, above.