Word Study
lamellibranch
CIDE DICTIONARY
lamellibranch, n.
One of the Lamellibranchia (also called Pelecypoda ). Also used adjectively. [1913 Webster]
OXFORD DICTIONARY
lamellibranch, n. any aquatic mollusc having a shell formed of two pieces or valves, e.g. a mussel or oyster. Also called BIVALVE.
Etymology
LAMELLA + Gk bragkhia gills
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