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(), Pneumat"ical ()} 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. 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 whic Pneumat"ic (), n.A vehicle, as a bicycle, the wheels of which are fitted with pneumatic tires. Pneumat"ic Pneumat"ical}, a.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. スポンサード リンク
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