The Collaborative International Dictionary of English v.0.48:
Maxillo-mandibular \Max*il`lo-man*dib"u*lar\, a. [Maxilla + mandibular.] (Anat.) Pertaining to the maxilla and mandible; as, the maxillo-mandibular nerve. [1913 Webster]WordNet (r) 3.0 (2006):
maxillomandibular adj 1: relating to the upper and lower jaws