'fossae' definitions:
Definition of 'fossae'
From: GCIDE
- fossa \fos"sa\, n.; pl. foss[ae]. [L., a ditch. See Fosse.] (Anat.) A pit, groove, cavity, or depression, of greater or less depth; as, the temporal fossa on the side of the skull; the nasal foss[ae] containing the nostrils in most birds. [1913 Webster]