claustrum

noun

claus·​trum ˈklȯ-strəm How to pronounce claustrum (audio) ˈklau̇- How to pronounce claustrum (audio)
plural claustra ˈklȯ-strə How to pronounce claustrum (audio)
ˈklau̇-
: the one of the four basal ganglia in each cerebral hemisphere that consists of a thin lamina of gray matter separated from the lenticular nucleus by a layer of white matter

Examples of claustrum in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The claustrum is unlikely to be the seat of consciousness. Michael W. Clune, Harper’s Magazine , 10 Apr. 2023 Cognitive neuroscientist Frederick Barrett and colleagues at the Johns Hopkins Center for Psychedelic and Consciousness Research recently examined how psilocybin affects neural activity in the claustrum. Iris Kulbatski, Discover Magazine, 9 Oct. 2020 Regarding the role of the claustrum, Barrett adds that its function during musical experiences has not yet been studied. Iris Kulbatski, Discover Magazine, 9 Oct. 2020 The claustrum is one of multiple brain regions that is rich in serotonin 2A receptors and organizes brain activity. Iris Kulbatski, Discover Magazine, 9 Oct. 2020

Word History

Etymology

New Latin, from Latin, bar

First Known Use

1848, in the meaning defined above

Time Traveler
The first known use of claustrum was in 1848

Dictionary Entries Near claustrum

Cite this Entry

“Claustrum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/claustrum. Accessed 1 Dec. 2024.

Medical Definition

claustrum

noun
claus·​trum ˈklȯ-strəm How to pronounce claustrum (audio) ˈklau̇- How to pronounce claustrum (audio)
plural claustra -strə How to pronounce claustrum (audio)
: the one of the four basal ganglia in each cerebral hemisphere that consists of a thin lamina of gray matter between the lentiform nucleus and the insula
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