MEDULLAS
Noun
medullas
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