Definition of cerebellum noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌserəˈbeləm//
; NAmE NAmE//ˌserəˈbeləm//
(pl. cerebellums, cerebella
BrE BrE//ˌserəˈbelə//
; NAmE NAmE//ˌserəˈbelə//
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the part of the brain at the back of the head that controls the activity of the muscles Word Originmid 16th cent.: from Latin, diminutive of cerebrum ‘brain’.
See the Oxford Advanced American Dictionary entry: cerebellum