Definition of valve

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Valve (n.) One or more membranous partitions, flaps, or folds, which permit the passage of the contents of a vessel or cavity in one direction, but stop or retard the flow in the opposite direction; as, the ileocolic, mitral, and semilunar valves..

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Venus :: Venus (n.) Any one of numerous species of marine bivalve shells of the genus Venus or family Veneridae. Many of these shells are large, and ornamented with beautiful frills; others are smooth, glossy, and handsomely colored. Some of the larger species, as the round clam, or quahog, are valued for food..
Dreissena :: Dreissena (n.) A genus of bivalve shells of which one species (D. polymorpha) is often so abundant as to be very troublesome in the fresh waters of Europe.
Bivalve :: Bivalve (a.) Having two shells or valves which open and shut, as the oyster and certain seed vessels..
Link :: Link (n.) Any intermediate rod or piece for transmitting force or motion, especially a short connecting rod with a bearing at each end; specifically (Steam Engine), the slotted bar, or connecting piece, to the opposite ends of which the eccentric rods are jointed, and by means of which the movement of the valve is varied, in a link motion..
Mya :: Mya (n.) A genus of bivalve mollusks, including the common long, or soft-shelled, clam..
Faucet :: Faucet (n.) A fixture for drawing a liquid, as water, molasses, oil, etc., from a pipe, cask, or other vessel, in such quantities as may be desired; -- called also tap, and cock. It consists of a tubular spout, stopped with a movable plug, spigot, valve, or slide..
Legume :: Legume (n.) A pod dehiscent into two pieces or valves, and having the seed attached at one suture, as that of the pea..
Buccinoid :: Buccinoid (a.) Resembling the genus Buccinum, or pertaining to the Buccinidae, a family of marine univalve shells. See Whelk, and Prosobranchiata..
Gate :: Gate (n.) A door, valve, or other device, for stopping the passage of water through a dam, lock, pipe, etc..
Buccinum :: Buccinum (n.) A genus of large univalve mollusks abundant in the arctic seas. It includes the common whelk (B. undatum).
Ear-shell :: Ear-shell (n.) A flattened marine univalve shell of the genus Haliotis; -- called also sea-ear. See Abalone.
Bubble Shell :: Bubble shell () A marine univalve shell of the genus Bulla and allied genera, belonging to the Tectibranchiata..
Asiphonate :: Asiphonate (a.) Destitute of a siphon or breathing tube; -- said of many bivalve shells.
Borer :: Borer (n.) A marine, bivalve mollusk, of the genus Teredo and allies, which burrows in wood. See Teredo..
Bellerophon :: Bellerophon (n.) A genus of fossil univalve shells, believed to belong to the Heteropoda, peculiar to the Paleozoic age..
Mitral :: Mitral (a.) Pertaining to a miter; resembling a miter; as, the mitral valve between the left auricle and left ventricle of the heart..
Shipworm :: Shipworm (n.) Any long, slender, worm-shaped bivalve mollusk of Teredo and allied genera. The shipworms burrow in wood, and are destructive to wooden ships, piles of wharves, etc. See Teredo..
Bivalve :: Bivalve (n.) A pericarp in which the seed case opens or splits into two parts or valves.
Columbella :: Columbella (n.) A genus of univalve shells, abundant in tropical seas. Some species, as Columbella mercatoria, were formerly used as shell money..
Sluice :: Sluice (n.) An artifical passage for water, fitted with a valve or gate, as in a mill stream, for stopping or regulating the flow; also, a water gate or flood gate..
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