BA´SAL, _a._ Pertaining to the base; situate at the base.
BASE, BA´SIS, _n._ Bottom; root; origin.
BASIHY´OID, n. Central tongue-bone.
BASIOCCIP´ITAL, _n._ Basal element of the occipital bone; centrum of
hindermost cranial vertebra.
BASIPTER´YGOID, _n._ A boss or protuberance of the base of the sphenoid
bone, often movably abutting against the pterygoid bone.
BASISPHE´NOID, _n._ Basal element of sphenoid bone; centrum of second
cranial vertebra.