valve
noun Etymology: Latin valva; akin to Latin volvere to roll — more at voluble Date: 14th century 1. archaic a leaf of a folding or double door 2. [New Latin valva, from Latin] a bodily structure (as the mitral valve) that closes temporarily a passage or orifice or permits movement of fluid in one direction only 3. a. any of numerous mechanical devices by which the flow of liquid, gas, or loose material in bulk may be started, stopped, or regulated by a movable part that opens, shuts, or partially obstructs one or more ports or passageways; also the movable part of such a device b. a device in a brass instrument for quickly channeling air flow through an added length of tube in order to change the fundamental tone by some definite interval c. chiefly British electron tube 4. [New Latin valva, from Latin] one of the distinct usually hinged and movable pieces of which the shell of some shell-bearing animals (as lamellibranch mollusks, brachiopods, and barnacles) consists 5. [New Latin valva, from Latin] a. one of the segments or pieces into which a dehiscing capsule or legume separates b. the portion of various anthers (as of the barberry) resembling a lid c. one of the two encasing membranes of a diatom • valved adjectivevalveless adjective

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Valve — Valve, n. [L. valva the leaf, fold, or valve of a door: cf. F. valve.] [1913 Webster] 1. A door; especially, one of a pair of folding doors, or one of the leaves of such a door. [1913 Webster] Swift through the valves the visionary fair Repassed …   The Collaborative International Dictionary of English

  • ValVe — Unternehmensform Private Corporation Gründung 1996 Untern …   Deutsch Wikipedia

  • valve — [ valv ] n. f. • 1752; « battant de porte » 1560; sens du lat. valva I ♦ 1 ♦ Chacune des deux parties de la coquille (dite bivalve) de certains mollusques et crustacés. « La valve rainurée d une coquille de Saint Jacques » (Proust). ♢ (1771) Bot …   Encyclopédie Universelle

  • valvé — valve [ valv ] n. f. • 1752; « battant de porte » 1560; sens du lat. valva I ♦ 1 ♦ Chacune des deux parties de la coquille (dite bivalve) de certains mollusques et crustacés. « La valve rainurée d une coquille de Saint Jacques » (Proust). ♢… …   Encyclopédie Universelle

  • Valve — Corporation Тип час …   Википедия

  • VALVe — Corporation Valve Corporation Dates clés 1996 (création) Personnages clés …   Wikipédia en Français

  • valve — [valv] n. [ME, a door leaf < L valva, leaf of a folding door, akin to volvere, to roll: see WALK; VALVE senses 3, 4, 8 < ModL valva < L] 1. Archaic either of the halves of a double door or any of the leaves of a folding door 2. a gate… …   English World dictionary

  • Valve — Software es una empresa estadounidense desarrolladora de software en el campo de los videojuegos. Se hizo mundialmente famosa por su primer juego, Half Life y por una modificación de este juego, Counter Strike. Las oficinas centrales de Valve… …   Enciclopedia Universal

  • valve — [vælv] n [Date: 1400 1500; : Latin; Origin: valva part of a door ] 1.) a part of a tube or pipe that opens and shuts like a door to control the flow of liquid, gas, air etc passing through it ▪ heart valves ↑mouthpiece, ↑valve 2.) the part on a… …   Dictionary of contemporary English

  • Valve — [vælv] der; [s], s <aus gleichbed. engl. valve, dies aus lat. valvae (Plur.) »die Türflügel, (Flügel)tür«> Sperrwechsel für Linien der gleichen Figur (Thema im Kunstschach); vgl. auch ↑Bivalve …   Das große Fremdwörterbuch

  • valve — (n.) late 14c., one of the halves of a folding door, from L. valva section of a folding or revolving door, lit. that which turns, related to volvere to roll (see VULVA (Cf. vulva)). Sense extended 1610s to membranous fold regulating flow of… …   Etymology dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”