Cerebellum

[,serɪ'beləm] or ['sɛrə'bɛləm]

(noun.) a major division of the vertebrate brain; situated above the medulla oblongata and beneath the cerebrum in humans.

Editor: Tess--From WordNet

(n.) The large lobe of the hind brain in front of and above the medulla; the little brain. It controls combined muscular action. See Brain.

Edited by Anselm