adjective 2. designating or of a bivalve mollusk
: also laˌmelliˈbranchiate (ləˌmɛlɪˈbræŋkiɪt
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'lamellibranch'< ModL Lamellibranchia, the class name: see lamelli- & branchiae