Asiphonea

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Asiphonea \As`i*pho"ne*a\, Asiphonata \A*si`pho*na"ta\,
  Asiphonida \As`i*phon"i*da\, n. pl. [NL., fr. Gr. 'a priv. + ? a
     tube.] (Zool.)
     A group of bivalve mollusks destitute of siphons, as the
     oyster; the asiphonate mollusks.
     [1913 Webster]