lamellibranch


la·mel·li·branch

noun \lə-ˈme-lə-ˌbraŋk\
plural la·mel·li·branchs

Definition of LAMELLIBRANCH

:  any of a class (Lamellibranchia) of bivalve mollusks (as clams, oysters, and mussels) that have the body bilaterally symmetrical, compressed, and enclosed within the mantle and that build up a shell whose right and left parts are connected by a hinge over the animal's back
lamellibranch adjective

Origin of LAMELLIBRANCH

New Latin Lamellibranchia, from lamella + Latin branchia gill
First Known Use: 1855

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