cerebellum

American  

[ser-uh-bel-uhm] / ˌsɛr əˈbɛl əm /

noun

Anatomy, Zoology.

cerebellums, plural cerebella plural

1. 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.

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cerebellum British  

/ ˌsɛrɪˈbɛləm /

noun

1. one of the major divisions of the vertebrate brain, situated in man above the medulla oblongata and beneath the cerebrum, whose function is coordination of voluntary movements and maintenance of bodily equilibrium

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cerebellum Scientific  

/ sĕr′ə-bĕl′əm /

cerebellums plural

1. The part of the vertebrate brain that is located below the cerebrum at the rear of the skull and that coordinates balance and muscle activity. In mammals, the cerebellum is made up of two connecting hemispheres that consist of a core of white matter surrounded by gray matter.

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cerebellum Cultural  

1. The part of the brain that helps control muscle coordination.

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Other Word Forms

• cerebellar
  adjective
• postcerebellar
  adjective
• precerebellar
  adjective
• subcerebellar
  adjective
• supercerebellar
  adjective

Etymology

Origin of cerebellum

1555–65; < Latin: brain, diminutive of cerebrum; see cerebrum; for formation, see castellum

Compare meaning

How does cerebellum compare to similar and commonly confused words? Explore the most common comparisons:

• cerebrum vs. cerebellum

Explanation

If you’re a professional juggler, you can thank your cerebellum for your great coordination. The cerebellum is the part of your brain that handles motor control. The word cerebellum entered English in the 16th century from the Latin word of the same name, meaning "little brain." The cerebellum is located at the base of the brain, near the back of your head. It looks like a separate structure stuck onto the rest of your brain — so in a sense, it’s like a “little brain.” In addition to motor control, the cerebellum is responsible for balance and muscle tone.

Example Sentences

"Inside the cerebellum are special cells called Purkinje neurons," Tiwari-Woodruff said.

From Science Daily • Jan. 6, 2026

"To answer this, one of our ongoing research projects is focused on studying mitochondria in specific types of brain cells in the cerebellum," Tiwari-Woodruff said.

From Science Daily • Jan. 6, 2026

They appear to have inherited several key traits, including expansion of the cerebrum, cerebellum and optic lobes, from earlier relatives before further adapting these regions for flight, Fabbri says.

From Science Daily • Dec. 9, 2025

The mice gradually developed marked motor problems, experienced significant neuron loss in the cerebral cortex and cerebellum, and showed strong neuroinflammatory responses.

From Science Daily • Dec. 9, 2025

He had observed its two membranes, as well as the hemispheres and cerebellum; but he asserts that it is bloodless, that no veins exist in it, and that it is naturally cold to the touch.

From Lives of Eminent Zoologists, from Aristotle to Linnæus with Introductory remarks on the Study of Natural History by MacGillivray, William

Related Words

• head
• intellect
• mind