[suh-ree-bruh m, ser-uh-]

noun, plural ce·re·brums, ce·re·bra [suh-ree-bruh, ser-uh-] /səˈri brə, ˈsɛr ə-/. Anatomy, Zoology.

the anterior and largest part of the brain, consisting of two halves or hemispheres and serving to control voluntary movements and coordinate mental actions.
the forebrain and the midbrain.

Origin of cerebrum

1605–15; < Latin: brain; akin to cranium, horn
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for cerebrum


noun plural -brums or -bra (-brə)

the anterior portion of the brain of vertebrates, consisting of two lateral hemispheres joined by a thick band of fibres: the dominant part of the brain in man, associated with intellectual function, emotion, and personalitySee telencephalon
the brain considered as a whole
the main neural bundle or ganglion of certain invertebrates
Derived Formscerebroid, adjectivecerebric (ˈsɛrɪbrɪk), adjective

Word Origin for cerebrum

C17: from Latin: the brain
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for cerebrum

1610s, from Latin cerebrum "brain" (see cerebral).

Online Etymology Dictionary, © 2010 Douglas Harper

cerebrum in Medicine


[sĕrə-brəm, sə-rē-]

n. pl. cer•e•brums

The largest portion of the brain, including practically all the parts within the skull except the medulla, pons, and cerebellum and now usually referring only to the parts derived from the telencephalon and including mainly the cerebral hemispheres that are joined at the bottom by the corpus callosum. It controls and integrates motor, sensory, and higher mental functions, such as thought, reason, emotion, and memory.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

cerebrum in Science


[sĕrə-brəm, sə-rēbrəm]

Plural cerebrums cerebra

The largest part of the vertebrate brain, filling most of the skull and consisting of two cerebral hemispheres divided by a deep groove and joined by the corpus callosum, a transverse band of nerve fibers. The cerebrum processes complex sensory information and controls voluntary muscle activity. In humans it is the center of thought, learning, memory, language, and emotion.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

cerebrum in Culture


[(ser-uh-bruhm, suh-ree-bruhm)]

The largest part of the brain, consisting of two lobes, the right and left cerebral hemispheres. The cerebrum controls thought and voluntary movement. (See cerebral cortex, left brain, and right brain.)

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.