脑,脑髓
Encephalon \En*ceph"a*lon\, n. [NL. See {Encephalos}.] (Anat.) The contents of the cranium; the brain.
encephalon n : that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord [syn: {brain}] [also: {encephala} (pl)]