amygdala

noun

amyg·​da·​la ə-ˈmig-də-lə How to pronounce amygdala (audio)
plural amygdalae ə-ˈmig-də-ˌlē How to pronounce amygdala (audio)
-ˌlī
: the one of the four basal ganglia in each cerebral hemisphere that is part of the limbic system and consists of an almond-shaped mass of gray matter in the anterior extremity of the temporal lobe

called also amygdaloid nucleus

Examples of amygdala in a Sentence

Recent Examples on the Web
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Marsh's early research found the size of their right amygdala — a region in the brain that processes emotions — to be larger than average, suggesting a greater capacity for empathy. Stephanie O'Neill, NPR, 26 Dec. 2024 These experiments have found that subconscious presentation activates emotion regulation circuits and regions, including the amygdala, where unconscious fear memories are thought to be stored. Simon Makin, Scientific American, 28 Oct. 2024 This second route, the one Patient X was using to recognize emotions, goes directly to the lower part of the brain (to the amygdala). Kevin Kruse, Forbes, 13 Dec. 2024 Feeling overwhelmed or fearful of the future triggers the amygdala, the brain's alarm system, which can hijack logical thinking and decision-making. Sahar Andrade, Forbes, 6 Dec. 2024 See all Example Sentences for amygdala 

Word History

Etymology

New Latin, from Latin, almond, from Greek amygdalē

First Known Use

1845, in the meaning defined above

Time Traveler
The first known use of amygdala was in 1845

Dictionary Entries Near amygdala

Cite this Entry

“Amygdala.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amygdala. Accessed 10 Jan. 2025.

Medical Definition

amygdala

noun
amyg·​da·​la ə-ˈmig-də-lə How to pronounce amygdala (audio)
plural amygdalae -ˌlē How to pronounce amygdala (audio) -ˌlī How to pronounce amygdala (audio)
: the one of the four basal ganglia in each cerebral hemisphere that is part of the limbic system and consists of an almond-shaped mass of gray matter in the roof of the lateral ventricle

called also amygdaloid body, amygdaloid nucleus

More from Merriam-Webster on amygdala

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