Synonyms for Brainstem:

n.

cerebral cortex, cerebellum, cerebral, brainwave, brain, brain cell, brain death, brain damage, central nervous system. brainstem (noun)
brain stem.

Other synonyms:

brain damage, central nervous system, cerebral cortex, cerebellum. cerebral, brainwave, brain cell. brain. Other relevant words:
cerebral, brain, cerebellum, brainwave.