Pŏl'y-mŏrph, n.

n. [Gr. πολυμόρφος, multiform, from πολύς, many, and μορφή, form; Fr. polymorphe.] (Zoöl.) One of a numerous tribe or series of shells, which are very small, irregular, and singular in form, and which can not be referred to any known genus; — so called by Soldani.