An'o-don, n.
n. [Gr. ἀν priv. and ὀδούς, ὀδόντος, a tooth.] (Conch.) A genus of lamellibranchiate bivalves, as the fresh-water muscle, having no posterior teeth at the hinge. Owen.
n. [Gr. ἀν priv. and ὀδούς, ὀδόντος, a tooth.] (Conch.) A genus of lamellibranchiate bivalves, as the fresh-water muscle, having no posterior teeth at the hinge. Owen.