medulla
Americannoun
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Anatomy.
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the marrow of the bones.
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the soft, marrowlike center of an organ, as the kidney or adrenal gland.
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Botany. the pith of plants.
noun
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anatomy
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the innermost part of an organ or structure
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short for medulla oblongata
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botany another name for pith
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The central portion of an anatomical structure, such as the adrenal gland or the kidney.
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of medulla
1635–45; < Latin: marrow, pith
Vocabulary lists containing medulla
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
For example, when the medulla is active, it initiates breathing.
From Science Daily ● Nov. 19, 2024
Han's team hypothesized that certain emotions or behaviors could lead cortical neurons to activate the pons, which would then lower activity in the medulla, resulting in slower breath.
From Science Daily ● Nov. 19, 2024
The innermost, or core layer, is the medulla.
From Scientific American ● Aug. 16, 2023
The library nearly resembles the shape of a brain, with the entrance being the medulla oblongata and the robust flooring as the cerebellum.
From Los Angeles Times ● Jan. 6, 2023
At the same time, the concentration of the mind on this subject sometimes produces even structural changes in the medulla, and the reflex susceptibility in co-ordination with the other symptoms may be almost perfect.
From A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases by Various
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
