Pronunciation: (ser"u-bel'um), [key]
—pl. -bel•lums, -bel•laPronunciation: (-bel'u). [key] Anat., Zool.
a large portion of the brain, serving to coordinate voluntary movements, posture, and balance in humans, being in back of and below the cerebrum and consisting of two lateral lobes and a central lobe. See illus. under brain.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.