thalamus

noun
thal·​a·​mus | \ ˈtha-lə-məs How to pronounce thalamus (audio) \
plural thalami\ ˈtha-​lə-​ˌmī How to pronounce thalamus (audio) , -​ˌmē \

Definition of thalamus

: the largest subdivision of the diencephalon that consists chiefly of an ovoid mass of nuclei in each lateral wall of the third ventricle and serves chiefly to relay impulses and especially sensory impulses to and from the cerebral cortex — see brain illustration

Other Words from thalamus

thalamic \ thə-​ˈla-​mik How to pronounce thalamus (audio) \ adjective

Examples of thalamus in a Sentence

Recent Examples on the Web This suggests that higher levels of C1q in the thalamus could contribute to several long-term effects of traumatic brain injury, such as sleep disruption and epilepsy. Jeanne Paz, The Conversation, 14 Dec. 2021 The thalamus sends fibers to the area of the cortex where sounds are processed. Mo Costandi, Scientific American, 29 June 2017 Miller and Brown suspected that the thalamus would be especially important for reinstating the rich chaos of being awake. Max G. Levy, Wired, 11 May 2021 Researchers felt that the best way to unclog her brain cells was to inject the gene therapy directly into her thalamus, two oval structures deep inside the brain that act as sort of a highway junction, connecting paths from many parts of the brain. USA Today, 25 Apr. 2021 The new mothers showed significantly greater activity in an area called the thalamus, which regulates consciousness, sleep and alertness. Dina Litovsky, Smithsonian Magazine, 22 Apr. 2021 Unlike our other senses, smell doesn’t first pass through the relay center of our brain’s thalamus to be routed through to the language-rich cortex. Noy Thrupkaew, Washington Post, 21 Apr. 2021 In humans, this ventral pathway begins in the eyes and proceeds to the lateral geniculate nucleus in the thalamus, a sort of relay station for sensory information. Quanta Magazine, 28 Oct. 2020 Boes was working with a patient who had a rare disorder called peduncular hallucinosis, in which damage to the thalamus, a structure at the center of the brain, causes visual hallucinations. Grace Huckins, Wired, 17 Aug. 2020

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

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First Known Use of thalamus

1859, in the meaning defined above

History and Etymology for thalamus

New Latin, from Greek thalamos chamber

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Time Traveler for thalamus

Time Traveler

The first known use of thalamus was in 1859

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Dictionary Entries Near thalamus

Thalamophora

thalamus

Thalarctos

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Statistics for thalamus

Last Updated

24 Dec 2021

Cite this Entry

“Thalamus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thalamus. Accessed 23 Jan. 2022.

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More Definitions for thalamus

thalamus

noun
thal·​a·​mus | \ ˈthal-ə-məs How to pronounce thalamus (audio) \
plural thalami\ -​ˌmī How to pronounce thalamus (audio) , -​ˌmē How to pronounce thalamus (audio) \

Medical Definition of thalamus

: the largest subdivision of the diencephalon that consists chiefly of an ovoid mass of nuclei in each lateral wall of the third ventricle and serves to relay impulses and especially sensory impulses to and from the cerebral cortex

More from Merriam-Webster on thalamus

Nglish: Translation of thalamus for Spanish Speakers

Britannica.com: Encyclopedia article about thalamus

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