A pit, groove, cavity, or depression, of greater or less depth; as, the temporal fossa on the side of the skull; the nasal fossæ containing the nostrils in most birds.
                                                            
                                                     
                        
                                                
                        
                        
                            a shallow depression or a furrow
                                                            
                                                     
                        
                                                
                        
                        
                            L. = a trench or ditch; axillary fossa = armpit; fossa ovalis = opening in thigh through which saphenous vein passes; fossa ovalis cordis = remnant of embryonic foramen ovale in heart; navicular fossa, q.v.
                                                            
                                                     
                        
                                                
                                                     
                        
                        
                            Latin for ditch, plural fossae]: A pit, indention, or cannel in a bone.
                                                            
                                                     
                        
                                                
                        
                        
                            (L. trench or ditch): A depression (ie. posterior cranial fossa).
                                                            
                                                     
                        
                                                
                        
                        
                            A pit, depession, trough, or extensive opening.
                                                            
                                                     
                        
                                                
                        
                        
                            A ventral trough in the clypeus into which the mandible's condyle articulates.
                                                            
                                                     
                        
                                                
                        
                        
                            A pit, depression, or concavity, on a bone, or formed from several bones.
                                                            
                                                     
                        
                                                
                        
                        
                        
                                                
                        
                        
                            A flat surface or a depression.
                                                            
                                                     
                        
                                                
                        
                        
                            Latin = a ditch or trench, hence a concavity in bone, or an organ, or on a lining surface.
                                                            
                                                     
                        
                                                
                        
                        
                            foss = depression or trench.
                                                            
                                                     
                        
                                                
                        
                        
                            A depression on the surface of the end of a bone.
                                                            
                                                     
                        
                                                
                        
                        
                            Ditches. Long, narrow, shallow depressions. They generally occur in groups and are straight or curved.
                                                            
                                                     
                        
                                                
                        
                        
                            a concavity in a surface (especially an anatomical depression) 
                                                            
                                                     
                        
                                                
                        
                        
                            an irregular depression on the surface of a tooth
                                                            
                                                     
                        
                                                
                        
                        
                            depression on a bony surface.
                                                            
                                                     
                        
                                                
                        
                        
                            A round or angular depression in the occlusal surface of a posterior tooth.
                                                            
                                                     
                        
                                                
                        
                        
                            an anatomical pit, groove, or depression, may refer to the brain, liver, or other anatomical structure.
                                                            
                                                     
                        
                                                
                        
                        
                            A shallow depression on surface of bone. Usually forming a site of muscular attachment or bone articulation.
                                                            
                                                     
                        
                                                
                        
                        
                            Long, shallow hollows or depressed areas in bones.
                                                            
                                                     
                        
                                                
                        
                        
                            a "ditch", usually referring to a shallow depression or cavity.
                                                            
                                                     
                        
                                                
                        
                        
                            A shallow depression of the bone.
                                                            
                                                     
                        
                                                
                        
                        
                            (Fossae).-pitches. Long, narrow, shallow depression. They generally occur in groups and are straight or curved.
                                                            
                                                     
                        
                                                
                        
                        
                            A shallow depression or furrow in the surface of a bone.
                                                            
                                                     
                        
                                                
                        
                        
                            A long, narrow, shallow depression.
                                                            
                                                     
                        
                                                
                        
                        
                            Fossa are long, narrow, shallow depressions on the surface of a planet.