a. [ Infra + maxillary. ] (Anat.) (a) Under the lower jaw; submaxillary; as, the inframaxillary nerve. (b) Of or pertaining to the lower iaw. [ 1913 Webster ]
n.; pl. Supramaxillae (Anat.) The upper jaw or maxilla. [ 1913 Webster ]
a. (Anat.) (a) Situated over the lower jaw; as, the supramaxillary nerve. (b) Of or pertaining to the upper jaw. [ 1913 Webster ]