me·​dul·​la | \ mə-ˈdə-lə How to pronounce medulla (audio) \
plural medullas or medullae\ mə-​ˈdə-​(ˌ)lē How to pronounce medulla (audio) , -​ˌlī \

Definition of medulla

1 plural medullae
2a : the inner or deep part of an animal or plant structure the adrenal medulla

Examples of medulla in a Sentence

Recent Examples on the Web But while anyone can buy a gym membership and do a few stage dives, one thing that couldn’t be replicated from Cornell was his iconic, medulla-scrambling voice. Corbin Reiff, SPIN, 18 May 2022 There, the invader becomes entangled in nose hair, stimulating nerve endings, which sends a message to a part of the brain stem called the medulla. Rebecca Strong,, 17 Feb. 2022 The medulla controls important yet involuntary functions like breathing, digestion, and heart rate. Rebecca Strong,, 17 Feb. 2022 If activation of a specific region in your medulla—referred to unimaginatively as the vomiting center—is strong enough, retching is initiated via signals sent through your nervous system to your digestive tract and abdominal muscles. Patrick Wilson, Outside Online, 13 Apr. 2020 The team also found damage to the medulla, which controls respiration and movement. Sharon Guynup, Science, 29 Dec. 2021 The other subtype connects to the medulla, a brain stem region containing neurons that activate muscles and coordinate movement. Simon Makin, Scientific American, 1 Nov. 2018 The innermost layer at the hair’s center is called the medulla. Svenja Lohner, Scientific American, 28 Nov. 2019 The chance to jam on a regular basis with your idol is enough to melt the medulla of any man, woman or child. Jordan Runtagh,, 19 Aug. 2019 See More

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

First Known Use of medulla

15th century, in the meaning defined at sense 1a

History and Etymology for medulla

Middle English, from Latin

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Time Traveler for medulla

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The first known use of medulla was in the 15th century

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Cite this Entry

“Medulla.” Dictionary, Merriam-Webster, Accessed 7 Aug. 2022.

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More Definitions for medulla


me·​dul·​la | \ mə-ˈdəl-ə How to pronounce medulla (audio) , -ˈdu̇l- How to pronounce medulla (audio) \
plural medullas or medullae\ -​(ˌ)ē How to pronounce medulla (audio) , -​ˌī How to pronounce medulla (audio) \

Medical Definition of medulla

1 plural medullae
2a : the inner or deep part of an organ or structure the adrenal medulla


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