corpus callosum

noun
corpus cal·​lo·​sum | \ -ka-ˈlō-səm How to pronounce corpus callosum (audio) , -kə- \
plural corpora callosa\ -​ka-​ˈlō-​sə How to pronounce corpus callosum (audio) , -​kə-​ \

Definition of corpus callosum

: the great band of commissural fibers uniting the cerebral hemispheres of higher mammals including humans — see brain illustration

Examples of corpus callosum in a Sentence

Recent Examples on the Web The corpus callosum is a communication network filled with cerebrospinal fluid that connects both the brain's left and right hemispheres. Elizabeth Gamillo, Smithsonian Magazine, 24 Feb. 2022 Domenech’s brother Colin, who turns 28 on April 30, was born without the band of white matter that connects the two hemispheres in the brain, a condition called agenesis of the corpus callosum. Edward Lee, Baltimore Sun, 16 Apr. 2022 In an interview with Hometown Life, the Michigan family said Silas' tumor is primiarly located in his corpus callosum, which links the two hemispheres of the brain, according to Cleveland Clinic. PEOPLE.com, 14 Oct. 2021 There were multiple contusions and axonal injuries — the shearing, or tearing, of the nerve fibers — scattered throughout the brain, from the tip of the right frontal lobe to the deep recesses of the corpus callosum. John Branch, New York Times, 7 Oct. 2021 Still, the team struggled to spot any clear defect in the animals’ brains — until one determined researcher found that there were fewer of the cells called astrocytes in the corpus callosum. Amber Dance Knowable Magazine, Smithsonian Magazine, 4 Sep. 2020 The surgery, which has not been scheduled, would involve cutting the corpus callosum, the bundle of nerve fibers that connects the two brain hemispheres. John Johnston, The Enquirer, 1 Dec. 2020 In the 20th and 21st centuries, some researchers found the whole corpus callosum is proportionally larger in women on average while others found only certain parts are bigger. The Conversation, oregonlive, 8 Aug. 2020 In the 20th and 21st centuries, some researchers found the whole corpus callosum is proportionally larger in women on average while others found only certain parts are bigger. The Conversation, oregonlive, 8 Aug. 2020 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'corpus callosum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of corpus callosum

1677, in the meaning defined above

History and Etymology for corpus callosum

borrowed from New Latin, literally, "tough body"

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The first known use of corpus callosum was in 1677

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Dictionary Entries Near corpus callosum

corpus allatum

corpus callosum

corpus cardiacum

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Last Updated

18 May 2022

Cite this Entry

“Corpus callosum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/corpus%20callosum. Accessed 30 Jun. 2022.

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More Definitions for corpus callosum

corpus callosum

noun
corpus cal·​lo·​sum | \ -ka-ˈlō-səm, -kə- \
plural corpora callosa\ -​sə How to pronounce corpus callosum (audio) \

Medical Definition of corpus callosum

: the great band of commissural fibers uniting the cerebral hemispheres

More from Merriam-Webster on corpus callosum

Britannica.com: Encyclopedia article about corpus callosum

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