Aspidobranchia
Pronunciation : As`pi*do*bran"chi*a
Part of Speech : n. pl.
Etymology : [NL., fr. Gr. (Zo?l.)
Definition : Defn: A group of Gastropoda, with limpetlike shells, including the abalone shells and keyhole limpets.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder