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Astarte :: Astarte (n.) A genus of bivalve mollusks, common on the coasts of America and Europe..

Marginella :: Marginella (n.) A genus of small, polished, marine univalve shells, native of all warm seas..

Subumbrella :: Subumbonal (a.) Beneath or forward of the umbos of a bivalve shell.

Pallet :: Pallet (n.) One of a pair of shelly plates that protect the siphon tubes of certain bivalves, as the Teredo. See Illust. of Teredo..

Water Gate :: Water gate () A gate, or valve, by which a flow of water is permitted, prevented, or regulated..

Buccinoid :: Buccinoid (a.) Resembling the genus Buccinum, or pertaining to the Buccinidae, a family of marine univalve shells. See Whelk, and Prosobranchiata..

Malleus :: Malleus (n.) A genus of bivalve shells; the hammer shell.

Wedge-shell :: Wedge-shell (n.) Any one of numerous species of small marine bivalves belonging to Donax and allied genera in which the shell is wedge-shaped.

Multivalvular :: Multivalvular (a.) Having many valves.

Lead :: Lead (n.) The width of port opening which is uncovered by the valve, for the admission or release of steam, at the instant when the piston is at end of its stroke..

Damper :: Damper (n.) That which damps or checks; as: (a) A valve or movable plate in the flue or other part of a stove, furnace, etc., used to check or regulate the draught of air. (b) A contrivance, as in a pianoforte, to deaden vibrations; or, as in other pieces of mechanism, to check some action at a particular time..

Malacobdella :: Malacobdella (n.) A genus of nemertean worms, parasitic in the gill cavity of clams and other bivalves. They have a large posterior sucker, like that of a leech. See Illust. of Bdellomorpha..

Quadrivalve :: Quadrivalve (n.) A door, shutter, or the like, having four folds..

Beard :: Beard (n.) The gills of some bivalves, as the oyster..

Pholas :: Pholas (n.) Any one of numerous species of marine bivalve mollusks of the genus Pholas, or family Pholadidae. They bore holes for themselves in clay, peat, and soft rocks..

Escutcheon :: Escutcheon (n.) The depression behind the beak of certain bivalves; the ligamental area.

Pallet :: Pallet (n.) In the organ, a valve between the wind chest and the mouth of a pipe or row of pipes..

Holostomatous :: Holostomatous (a.) Having an entire aperture; -- said of many univalve shells.

Lithodome :: Lithodome (n.) Any one of several species of bivalves, which form holes in limestone, in which they live; esp., any species of the genus Lithodomus..

Kingston Valve :: Kingston valve () A conical valve, opening outward, to close the mouth of a pipe which passes through the side of a vessel below the water line..

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