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Force Pump :: Force pump () A pump having a solid piston, or plunger, for drawing and forcing a liquid, as water, through the valves; in distinction from a pump having a bucket, or valved piston..

Heteromyaria :: Heteromyaria (n. pl.) A division of bivalve shells, including the marine mussels, in which the two adductor muscles are very unequal. See Dreissena, and Illust. under Byssus..

Trivalvular :: Trivalvular (a.) Having three valves; three-valved.

Quinquevalvular :: Quinquevalvular (a.) Having five valves, as a pericarp..

Inclusa :: Inclusa (n. pl.) A tribe of bivalve mollusks, characterized by the closed state of the mantle which envelops the body. The ship borer (Teredo navalis) is an example..

Sea Cock :: Sea cock () In a steamship, a cock or valve close to the vessel's side, for closing a pipe which communicates with the sea..

Holostraca :: Holostraca (n. pl.) A division of phyllopod Crustacea, including those that are entirely covered by a bivalve shell..

Throw :: Throw (n.) The extreme movement given to a sliding or vibrating reciprocating piece by a cam, crank, eccentric, or the like; travel; stroke; as, the throw of a slide valve. Also, frequently, the length of the radius of a crank, or the eccentricity of an eccentric; as, the throw of the crank of a steam engine is equal to half the stroke of the piston..

Replum :: Replum (n.) The framework of some pods, as the cress, which remains after the valves drop off..

Hippurite :: Hippurite (n.) A fossil bivalve mollusk of the genus Hippurites, of many species, having a conical, cup-shaped under valve, with a flattish upper valve or lid. Hippurites are found only in the Cretaceous rocks..

Sutured :: Suture (n.) A seam, or impressed line, as between the segments of a crustacean, or between the whorls of a univalve shell..

Lag :: Lag (n.) The amount of retardation of anything, as of a valve in a steam engine, in opening or closing..

Valvelet :: Valvelet (n.) A little valve; a valvule; especially, one of the pieces which compose the outer covering of a pericarp..

Auriculated :: Auriculated (a.) Having ears or appendages like ears; eared. Esp.: (a) (Bot.) Having lobes or appendages like the ear; shaped like the ear; auricled. (b) (Zool.) Having an angular projection on one or both sides, as in certain bivalve shells, the foot of some gastropods, etc..

Spat :: Spat (n.) A young oyster or other bivalve mollusk, both before and after it first becomes adherent, or such young, collectively..

Valved :: Valved (a.) Having a valve or valve; valvate.

Ileocolic :: Ileocolic (a.) Pertaining to the ileum and colon; as, the ileocolic, or ileocaecal, valve, a valve where the ileum opens into the large intestine..

Beak :: Beak (n.) The prolongation of certain univalve shells containing the canal.

Spindle :: Spindle (n.) Any marine univalve shell of the genus Rostellaria; -- called also spindle stromb.

Mya :: Mya (n.) A genus of bivalve mollusks, including the common long, or soft-shelled, clam..

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