polyphalangism

polyphalangia

 [pol″e-fah-lan´je-ah] (polyphalangism [pol″e-fah-lan´jizm]) excess of phalanges in a finger or toe.

hy·per·pha·lan·gism

(hī'pĕr-fă-lan'jizm), Presence of a supernumerary phalanx in a finger or toe. Synonym(s): polyphalangism