The cerebellum is defined as the part of the brain in control of muscle movement. About a third of the brain’s total mass is made up of the cerebellum.
An example of the cerebellum is the area of the brain below the cerebrum.
nounpl. -·lums or -·la
the section of the brain behind and below the cerebrum: it consists of two lateral lobes and a middle lobe, and functions as the coordinating center for muscular movement
Origin of cerebellumL, diminutive of cerebrum, brain from Indo-European an unverified form ?eres- from base an unverified form ?er-, top of the head: see horn
nounpl. cer·e·bel·lums, or cer·e·bel·la
The trilobed structure of the brain, lying posterior to the pons and medulla oblongata and inferior to the occipital lobes of the cerebral hemispheres, that is responsible for the regulation and coordination of complex voluntary muscular movement as well as the maintenance of posture and balance.
Origin of cerebellumMedieval Latin from Latin diminutive of cerebrum brain ; see ker-1 in Indo-European roots.