heteromyaria

1 definition found

heteromyaria - Collaborative International Dictionary of English v.0.48 :

  Heteromyaria \Het`e*ro*my*a"ri*a\, n. pl. [NL., fr. Gr. ? other
     + ? a muscle.] (Zool.)
     A division of bivalve shells, including the marine mussels,
     in which the two adductor muscles are very unequal. See
     Dreissena, and Illust. under Byssus.
     [1913 Webster]