n.
Pronunciation: l ə - ' me-l ə - ˌ bra ŋ k
Function: noun
Inflected Form: plural -branchs
Etymology: New Latin Lamellibranchia, from lamella + Latin branchia gill
Date: 1855
: 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