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[luh-mel-uh-brangk] /ləˈmɛl əˌbræŋk/
Origin of lamellibranch
1850-55; < New Latin Lamellibranchia group name. See lamelli-, -branchia Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for lamellibranch


noun, adjective
another word for bivalve (sense 1), bivalve (sense 2)
Derived Forms
lamellibranchiate, adjective, noun
Word Origin
C19: from New Latin lamellibranchia plate-gilled (animals); see lamella, branchia
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
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lamellibranch in Science
  1. Any of the bivalve mollusks of the subclass Lamellibranchia, the largest group of bivalves. Lamellibranchs have gills that consist of long, folded filaments with cilia at the end that draw in water for respiration and also filter food particles. Lamellibranchs include clams, scallops, and oysters.

  2. In former classifications, any bivalve mollusk.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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