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[suh-ree-bruh m, ser-uh-] /səˈri brəm, ˈsɛr ə-/
noun, plural cerebrums, cerebra
[suh-ree-bruh, ser-uh-] /səˈri brə, ˈsɛr ə-/ (Show IPA).
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.
1605-15; < Latin: brain; akin to cranium, horn Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for cerebra


noun (pl) -brums, -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 personality See telencephalon
the brain considered as a whole
the main neural bundle or ganglion of certain invertebrates
Derived Forms
cerebroid, adjective
cerebric (ˈsɛrɪbrɪk) adjective
Word Origin
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
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Word Origin and History for cerebra



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

Online Etymology Dictionary, © 2010 Douglas Harper
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cerebra in Medicine

cerebrum cer·e·brum (sěr'ə-brəm, sə-rē'-)
n. pl. cer·e·brums or cer·e·bra (-brə)
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.
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cerebra in Science
  (sěr'ə-brəm, sə-rē'brəm)   
Plural cerebrums or 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 © 2002. Published by Houghton Mifflin. All rights reserved.
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cerebra in Culture
cerebrum [(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 American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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