MEDULLAE

MEDULLA

medulla

(noun) the inner part of an organ or structure in plant or animal

myelin, myeline, medulla

(noun) a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers

Source: WordNet® 3.1


Noun

medullae

plural of medulla

Source: Wiktionary


MEDULLA

Me*dul"la, n. Etym: [L.]

1. Marrow; pith; hence, essence. [Obs.] Milton.

2. (Anat.)

Definition: The marrow of bones; the deep or inner portion of an organ or part; as, the medulla, or medullary substance, of the kidney; specifically, the medula oblongata.

3. (Bot.)

Definition: A soft tissue, occupying the center of the stem or branch of a plant; pith. Medulla oblongata. Etym: [L., oblong medulla] (Anat.), the posterior part of the brain connected with the spinal cord. It includes all the hindbrain except the cerebellum and pons, and from it a large part of the cranial nerves arise. It controls very largely respiration, circulation, swallowing, and other functions, and is the most vital part of the brain; -- called also bulb of the spinal cord. See Brain.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

1 April 2025

ANYMORE

(adverb) at the present or from now on; usually used with a negative; “Alice doesn’t live here anymore”; “the children promised not to quarrel any more”


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