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Bivalve   /bˈaɪvˌælv/   Listen
noun
Bivalve  n.  
1.
(Zool.) A mollusk having a shell consisting of two lateral plates or valves joined together by an elastic ligament at the hinge, which is usually strengthened by prominences called teeth. The shell is closed by the contraction of two transverse muscles attached to the inner surface, as in the clam, or by one, as in the oyster. See Mollusca.
2.
(Bot.) A pericarp in which the seed case opens or splits into two parts or valves.


adjective
Bivalve  adj.  (Zool. & Bot.) Having two shells or valves which open and shut, as the oyster and certain seed vessels.





Collaborative International Dictionary of English 0.48


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"Bivalve" Quotes from Famous Books



... knives and other utensils, which the Irishman had also brought away from the boat, they seated themselves around the grand bivalve; nor did they arise from their seats until the shells were scraped clean, and hunger, that had so long tortured them, was quite ...
— The Castaways • Captain Mayne Reid
... lowest classes, namely, in the Ascidians, Polyzoa, and Brachiopods (constituting the Molluscoida of some authors), for most of these animals are permanently affixed to a support or have their sexes united in the same individual. In the Lamellibranchiata, or bivalve shells, hermaphroditism is not rare. In the next higher class of the Gasteropoda, or univalve shells, the sexes are either united or separate. But in the latter case the males never possess special organs for finding, securing, or charming ...
— The Descent of Man and Selection in Relation to Sex • Charles Darwin
... externally to admit the passage of the egg to the ovipositor: receives the penis of the male in copulation and is sometimes called oviduct: "every part, the office of which is to cover, protect or defend the tongue": "the bivalve coriaceous sheath or cover of the spicula": ...
— Explanation of Terms Used in Entomology • John. B. Smith
... examined this specimen, and find it to be the common schistus of that country, only containing many bivalve shells and fragments of entrochi and madrapore bodies, and ...
— Theory of the Earth, Volume 1 (of 4) • James Hutton
... a certain sense only, is of a most retiring, not to say secretive, disposition. For several years I sought in vain a living specimen of a flattened elongated bivalve (VALSELLA), buff-coloured externally, very lustrous within, with a hinge the centre of which resembles a split pearl. The blacks could offer no information beyond that which was delightfully indefinite. "That ...
— My Tropic Isle • E J Banfield


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