Pneumatic pile
Pneumatic Pneu*mat"ic, Pneumatical Pneu*mat"ic*al, 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. [1913 Webster]

The pneumatical substance being, in some bodies, the native spirit of the body. --Bacon. [1913 Webster]

2. Of or pertaining to air, or to elastic fluids or their properties; pertaining to pneumatics; as, pneumatic experiments. ``Pneumatical discoveries.'' --Stewart. [1913 Webster]

3. Moved or worked by pressure or flow of air; as, a pneumatic instrument; a pneumatic engine. [1913 Webster]

4. (Biol.) Fitted to contain air; Having cavities filled with air; as, pneumatic cells; pneumatic bones. [1913 Webster]

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. [Webster 1913 Suppl.]

{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. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Pneumatic pile — Pile Pile, n. [AS. p[=i]l arrow, stake, L. pilum javelin; but cf. also L. pila pillar.] 1. A large stake, or piece of timber, pointed and driven into the earth, as at the bottom of a river, or in a harbor where the ground is soft, for the support …   The Collaborative International Dictionary of English

  • pneumatic pile — noun : a tubular pile or large cylinder sunk by the atmospheric pressure exerted when the air is exhausted from a chamber at its lower end * * * Building Trades. a hollow pile, used under water, in which a vacuum is induced so that air and water… …   Useful english dictionary

  • pneumatic pile — Building Trades. a hollow pile, used under water, in which a vacuum is induced so that air and water pressure force it into place. [1855 60] * * * …   Universalium

  • Pneumatic — Pneu*mat ic, Pneumatical Pneu*mat ic*al, 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;… …   The Collaborative International Dictionary of English

  • Pneumatic action — Pneumatic Pneu*mat ic, Pneumatical Pneu*mat ic*al, 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… …   The Collaborative International Dictionary of English

  • Pneumatic dispatch — Pneumatic Pneu*mat ic, Pneumatical Pneu*mat ic*al, 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… …   The Collaborative International Dictionary of English

  • Pneumatic elevator — Pneumatic Pneu*mat ic, Pneumatical Pneu*mat ic*al, 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… …   The Collaborative International Dictionary of English

  • Pneumatic lever — Pneumatic Pneu*mat ic, Pneumatical Pneu*mat ic*al, 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… …   The Collaborative International Dictionary of English

  • Pneumatic pump — Pneumatic Pneu*mat ic, Pneumatical Pneu*mat ic*al, 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… …   The Collaborative International Dictionary of English

  • Pneumatic railway — Pneumatic Pneu*mat ic, Pneumatical Pneu*mat ic*al, 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… …   The Collaborative International Dictionary of English

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