intercusping

in·ter·cus·pa·tion

(in'tĕr-kŭs-pā'shŭn), 1. The cusp-to-fossa relationship of the maxillary and mandibular posterior teeth to each other. 2. The interlocking or fitting together of the cusps of opposing teeth. Synonym(s): interdigitation (4) Synonym(s): intercusping