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Valve :: Valve (n.) One of the pieces or divisions of bivalve or multivalve shells.

Tubivalve :: Tubivalve (n.) A shell or tube formed by an annelid, as a serpula..

Multivalve :: Multivalve (n.) Any mollusk which has a shell composed of more than two pieces.

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..

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

Hydrant :: Hydrant (n.) A discharge pipe with a valve and spout at which water may be drawn from the mains of waterworks; a water plug.

Siphonata :: Siphonata (n. pl.) A tribe of bivalve mollusks in which the posterior mantle border is prolonged into two tubes or siphons. Called also Siphoniata. See Siphon, 2 (a), and Quahaug..

Travel :: Travel (n.) The length of stroke of a reciprocating piece; as, the travel of a slide valve..

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..

Dashpot :: Dashpot (n.) A pneumatic or hydraulic cushion for a falling weight, as in the valve gear of a steam engine, to prevent shock..

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

Xylophaga :: Xylophaga (n.) A genus of marine bivalves which bore holes in wood. They are allied to Pholas.

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

Ostracoidea :: Ostracoidea (n. pl.) An order of Entomostraca possessing hard bivalve shells. They are of small size, and swim freely about..

Bimuscular :: Bimuscular (a.) Having two adductor muscles, as a bivalve mollusk..

Odontophore :: Odontophore (n.) A special structure found in the mouth of most mollusks, except bivalves. It consists of several muscles and a cartilage which supports a chitinous radula, or lingual ribbon, armed with teeth. Also applied to the radula alone. See Radula..

Fig-shell :: Fig-shell (n.) A marine univalve shell of the genus Pyrula, or Ficula, resembling a fig in form..

Decollated :: Decollated (a.) Decapitated; worn or cast off in the process of growth, as the apex of certain univalve shells..

Bubble Shell :: Bubble shell () A marine univalve shell of the genus Bulla and allied genera, belonging to the Tectibranchiata..

Goroon Shell :: Goroon shell () A large, handsome, marine, univalve shell (Triton femorale)..

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