Hip'po-nyx, n.
n. [Gr. ἵππος, horse, and ὄνυξ, claw.] (Zoöl.) A genus of mollusks having patelliform shells, upon the inner surface of which is a depression in the form of a horse-shoe.
n. [Gr. ἵππος, horse, and ὄνυξ, claw.] (Zoöl.) A genus of mollusks having patelliform shells, upon the inner surface of which is a depression in the form of a horse-shoe.