compression
A squeezing together; the exertion of pressure on a body in such a way as to tend to increase its density; the decrease in a dimension of a body under the action of two external forces directed toward one another in the same straight line.
- c. of brain SYN: cerebral c..
- cerebral c. pressure upon the intracranial tissues by an effusion of blood or cerebrospinal fluid, an abscess, a neoplasm, a depressed fracture of the skull, or an edema of the brain. SYN: c. of brain.
- c. limiting a hearing aid circuit in which amplification is reduced at high input levels.
- c. of tissue SYN: tissue displaceability.
- wide dynamic range c. a hearing aid circuit in which amplification is increased across the frequency range at low input levels.

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com·pres·sion kəm-'presh-ən n the act, process, or result of compressing esp. when involving a compressing force on a bodily part <\compression of an artery by forceps> <\compression of the brain by the bones of a depressed fracture>

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com·pres·sion (kəm-preshґən) [L. compressio, from comprimere to squeeze together] 1. the act of pressing together; an action exerted upon a body by an external force which tends to diminish its volume and augment its density. 2. in embryology, the shortening or omission of certain stages during development.

Medical dictionary. 2011.

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  • compression — [ kɔ̃presjɔ̃ ] n. f. • 1361; lat. compressio, de comprimere 1 ♦ Action de comprimer. ⇒ pression. Compression de l air. La compression augmente la densité. Spécialt Phase précédant l explosion dans le cycle d un moteur à explosion. Taux de… …   Encyclopédie Universelle

  • Compression — may refer to: In physical science Compression (physical), the result of the subjection of a material to compressive stress Compression member, a class of structural elements, of which a column is the most common specific example Compressibility,… …   Wikipedia

  • Compression — Com*pres sion, n. [L. compressio: cf. F. compression.] 1. The act of compressing, or state of being compressed. Compression of thought. Johnson. [1913 Webster] 2. (Computers) reduction of the space required for storage (of binary data) by an… …   The Collaborative International Dictionary of English

  • compression — COMPRESSION. s. fém. Action de comprimer, ou l effet qui est produit dans ce qui est comprimé. La compression de l air …   Dictionnaire de l'Académie Française 1798

  • compression — c.1400, from M.Fr. compression (14c.), from L. compressionem (nom. compressio) a pressing together, noun of action from compress , pp. stem of comprimere (see COMPRESS (Cf. compress)). Related: Compressional wave (1887) …   Etymology dictionary

  • compression — Compression. s. f. v. L effet qui est produit dans ce qui est comprimé. La compression de l air …   Dictionnaire de l'Académie française

  • Compression — (v. lat.), Druck, Zusammendrückung; daher Compressionsfontaine, s. u. Springbrunnen; Compressionsgefäß der Feuerspritze, s. u. Feuerspritze; Compressionsinstrument, so v. w. Compressorium; Compressionskraft, so v. w. Druckkraft;… …   Pierer's Universal-Lexikon

  • compression — index abridgment (condensation), abstract, blockade (limitation), capsule, centralization, curtailment …   Law dictionary

  • Compression —   [engl.], Komprimierung …   Universal-Lexikon

  • compression — ► NOUN 1) the action of compressing or being compressed. 2) the reduction in volume (causing an increase in pressure) of the fuel mixture in an internal combustion engine before ignition. DERIVATIVES compressional adjective …   English terms dictionary

  • compression — [kəm presh′ən] n. [ME < OFr < L compressio] 1. a compressing or being compressed 2. Mech. the compressing of the air fuel mixture in an internal combustion engine just before ignition …   English World dictionary

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