bivalve(redirected from Pelecypoda)
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Any of numerous freshwater and marine mollusks of the class Bivalvia, having a shell consisting of two hinged valves connected by a ligament, and including the clams, mussels, oysters, and scallops. Also called lamellibranch, pelecypod.
1. Having a shell consisting of two hinged valves.
2. Consisting of two similar separable parts.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
bivalveany marine or freshwater mollusc of the class Lamellibranchiata (Pelecypoda) having two hinged parts to its shell. BRACHIOPODS are also bivalves, in that there are two hinged parts to the shell, but the term is usually restricted to true molluscs.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005