(drī-ō-pith'ĕ-kŭs pat'ĕrn) 1. The ancestral pattern of cusps and grooves in humans. 2. A Y-5 cusp and groove pattern. See also: cusp and groove pattern[Dryopithecus, a genus of anthropoid apes of the Miocene epoch]
Dry·o·pi·the·cus pat·tern
(drī-ō-pith'ĕ-kŭs pat'ĕrn) 1. Ancestral pattern of cusps and grooves in humans. 2. A Y-5 cusp and groove. [Dryopithecus, a genus of anthropoid apes of the Miocene epoch]