小脑
Cerebellum \Cer`e*bel"lum\, n.; pl. E. {Cerebellums}, L. {Cerebella}. [L., dim. of cerebrum brain.] (Anat.) The large lobe of the hind brain in front of and above the medulla; the little brain. It controls combined muscular action. See {Brain}.
cerebellum n : a major division of the vertebrate brain; situated above the medulla oblongata and beneath the cerebrum in humans [also: {cerebella} (pl)]