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 — PNEUMÁTIC, Ă, pneumatici, ce, adj., s.f. 1. adj. (Despre maşini, aparate, utilaje etc.) Care funcţionează cu aer comprimat. ♦ Care este folosit la comprimarea sau la deplasarea aerului. 2. s.f. Parte a fizicii care studiază proprietăţile aerului… …   Dicționar Român

  • pneumatic — [no͞o mat′ik, nyo͞omat′ik] adj. [L pneumaticus < Gr pneumatikos < pneuma, breath: see PNEUMA] 1. of or containing wind, air, or gases 2. a) filled with compressed air [pneumatic tire] b) worked by compressed air [pneumatic drill] …   English World dictionary

  • Pneumatic — Pneu*mat ic, n. A vehicle, as a bicycle, the wheels of which are fitted with pneumatic tires. [archaic] [Webster 1913 Suppl.] …   The Collaborative International Dictionary of English

  • pneumatic — 1650s, from L. pneumaticus of the wind, belonging to the air, from Gk. pneumatikos, from pneuma (gen. pneumatos) wind, also breath, from pnein to blow, to breathe, from PIE root *pneu to breathe, of imitative origin …   Etymology dictionary

  • pneumatic — ► ADJECTIVE ▪ containing or operated by air or gas under pressure. DERIVATIVES pneumatically adverb. ORIGIN Greek pneumatikos, from pneuma wind …   English terms dictionary

  • pneumatic — [[t]njuːmæ̱tɪk[/t]] 1) ADJ: ADJ n A pneumatic drill is operated by air under pressure and is very powerful. Pneumatic drills are often used for digging up roads. ...the sound of a pneumatic drill hammering away. 2) ADJ: ADJ n Pneumatic means… …   English dictionary

  • pneumatic — pneumatically, adv. pneumaticity /nooh meuh tis i tee, nyooh /, n. /noo mat ik, nyoo /, adj. 1. of or pertaining to air, gases, or wind. 2. of or pertaining to pneumatics. 3. operated by air or by the pressure or exhaustion of air: a pneumatic… …   Universalium

  • pneumatic — pneu|mat|ic [nju:ˈmætık US nu ] adj [usually before noun] [Date: 1600 1700; : Latin; Origin: pneumaticus, from Greek, from pneuma air, breath, spirit ] 1.) technical filled with air ▪ pneumatic tyres 2.) worked by air pressure ▪ a pneumatic pump …   Dictionary of contemporary English

  • pneumatic — pneu|mat|ic [ nu mætık ] adjective filled with COMPRESSED air or gas: pneumatic tires a. a pneumatic tool or piece of equipment works using COMPRESSED air …   Usage of the words and phrases in modern English

  • pneumatic — adjective 1 technical filled with air: pneumatic tyres 2 worked by air pressure: a pneumatic pump pneumatically adverb …   Longman dictionary of contemporary English

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