As`i*pho"ne*a (#), A*si`pho*na"ta (#), As`i*phon"i*da (#), n. pl. [NL., fr. Gr. priv. + a tube.] Zool.

A group of bivalve mollusks destitute of siphons, as the oyster; the asiphonate mollusks.

 

© Webster 1913.