Definition of valve

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Valve (n.) One of the two similar portions of the shell of a diatom.

Lern More About Valve

Cardo :: Cardo (n.) The hinge of a bivalve shell.
Drill :: Drill (n.) A marine gastropod, of several species, which kills oysters and other bivalves by drilling holes through the shell. The most destructive kind is Urosalpinx cinerea..
Cockleshell :: Cockleshell (n.) One of the shells or valves of a cockle.
Intracolic :: Intracolic (a.) Within the colon; as, the intracolic valve..
Harpa :: Harpa (n.) A genus of marine univalve shells; the harp shells; -- so called from the form of the shells, and their ornamental ribs..
Trumpet :: Trumpet (n.) A wind instrument of great antiquity, much used in war and military exercises, and of great value in the orchestra. In consists of a long metallic tube, curved (once or twice) into a convenient shape, and ending in a bell. Its scale in the lower octaves is limited to the first natural harmonics; but there are modern trumpets capable, by means of valves or pistons, of producing every tone within their compass, although at the expense of the true ringing quality of tone..
Valvula :: Valvula (n.) A little valve or fold; a valvelet; a valvule.
Marginella :: Marginella (n.) A genus of small, polished, marine univalve shells, native of all warm seas..
Organ :: Organ (n.) A component part performing an essential office in the working of any complex machine; as, the cylinder, valves, crank, etc., are organs of the steam engine..
Valvule :: Valvule (n.) A little valve; a valvelet.
Univalve :: Univalve (n.) A shell consisting of one valve only; a mollusk whose shell is composed of a single piece, as the snails and conchs..
Teredo :: Teredo (n.) A genus of long, slender, wormlike bivalve mollusks which bore into submerged wood, such as the piles of wharves, bottoms of ships, etc.; -- called also shipworm. See Shipworm. See Illust. in App..
Veneracea :: Veneracea (n. pl.) An extensive tribe of bivalve mollusks of which the genus Venus is the type. The shells are usually oval, or somewhat heartshaped, with a conspicuous lunule. See Venus..
Trivalvular :: Trivalvular (a.) Having three valves; three-valved.
Ambitus :: Ambitus (n.) The exterior edge or border of a thing, as the border of a leaf, or the outline of a bivalve shell..
Tridacna :: Tridacna (n.) A genus of very large marine bivalve shells found on the coral reefs of the Indian and Pacific Oceans. One species (T. gigas) often weighs four or five hundred pounds, and is sometimes used for baptismal fonts. Called also paw shell, and fountain shell..
Loment :: Loment (n.) An elongated pod, consisting, like the legume, of two valves, but divided transversely into small cells, each containing a single seed..
Conch :: Conch (n.) A name applied to various marine univalve shells; esp. to those of the genus Strombus, which are of large size. S. gigas is the large pink West Indian conch. The large king, queen, and cameo conchs are of the genus Cassis. See Cameo..
Quinquevalvular :: Quinquevalvular (a.) Having five valves, as a pericarp..
Skimmer :: Skimmer (n.) Any one of several large bivalve shells, sometimes used for skimming milk, as the sea clams, and large scallops..
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