has part has part has_part characteristic of has modifier abnormal mandibular condyloid process morphology absent mandibular condyloid process MPheno.ontology absence of the round bump of bone and constricted neck portion that arises from the upper surface of the mandibular ramus (perpendicular portion) and articulates with the articular disk of the temporomandibular joint MP:0004911 abnormal absent mandible condylar process