Aspidobranchia
Also found in: Encyclopedia, Wikipedia.
As`pi`do`bran´chi`a
| n. pl. | 1. | (Zool.) A group of Gastropoda, with limpetlike shells, including the abalone shells and keyhole limpets. |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.