- Also called lamellibranch. Zoology. any mollusk, as the oyster, clam, scallop, or mussel, of the class Bivalvia, having two shells hinged together, a soft body, and lamellate gills.
- Botany. having two valves, as a seedcase.
- Zoology. having two shells, usually united by a hinge.
- having two similar parts hinged together.
Origin of bivalve
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for bivalve
The instance referred to is that presented by bivalve shell-fish.On the Genesis of Species
St. George Mivart
The mother-of-pearl which lines some shells, both univalve and bivalve.The Sailor's Word-Book
William Henry Smyth
Flattened sideways and as hard as stone, no bivalve can resist it.Poachers and Poaching
Many persons prefer it to the bivalve, when it is cooked properly.ABC of Vegetable Gardening
Eben Eugene Rexford
Bivalve shells are said to gape when the margins do not meet all round.A Conchological Manual
George Brettingham Sowerby
- Also: pelecypod, lamellibranch any marine or freshwater mollusc of the class Pelecypoda (formerly Bivalvia or Lamellibranchia), having a laterally compressed body, a shell consisting of two hinged valves, and gills for respiration. The group includes clams, cockles, oysters, and mussels
- Also: pelecypod, lamellibranch of, relating to, or belonging to the Pelecypoda
- Also: bivalvate (baɪˈvælveɪt) biology having or consisting of two valves or similar partsa bivalve seed capsule
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for bivalve
Online Etymology Dictionary, © 2010 Douglas Harper
- Any of various mollusks of the class Bivalvia, having a shell consisting of two halves hinged together. Clams, oysters, scallops, and mussels are bivalves. The class Bivalvia is also called Pelecypoda, and was formerly called Lamellibranchia. Compare univalve.
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