Wiktionary
metacone
n. (context anatomy English) A cusp in the corner of an upper molar tooth in mammals
Wikipedia
Metacone
The metacone is a cusp on the molars of the upper dentition in hominids. It is found at the buccal distal area of the tooth. The crests between the cusps are adaptations for slicing food during occlusion or mastication (chewing).
Other cusps of the upper dentition of hominids include the paracone, hypocone, and the protocone.
Category:Parts of tooth