Asiphonea
As`i`pho´ne`a
n. pl. | 1. | (Zool.) A group of bivalve mollusks destitute of siphons, as the oyster; the asiphonate mollusks. |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
n. pl. | 1. | (Zool.) A group of bivalve mollusks destitute of siphons, as the oyster; the asiphonate mollusks. |