D defs.my
Entry 1 sense Webster, 1913

Heteromyaria

· Het·e·ro·my·a·ri·a · IPA
01 n. pl. A division of bivalve shells, including the marine mussels, in which the two adductor muscles are very unequal. See Dreissena, and Illust. …
  1. 1.
    A division of bivalve shells, including the marine mussels, in which the two adductor muscles are very unequal. See Dreissena, and Illust. under Byssus.(Zool.) See: Dreissena, Byssus