lamellibranch
la.mel.li.branch \l*-'mel-*-.brank\ \l*-.mel-*-'bran-ke--*t\ n [NL Lamellibranchia, classname, fr. lamell- + L branchia gill] - more at BRANCHIA : any of a class (Lamellibranchia) of bivalve mollusks (as clams, oysters, 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 aj