Hypertext Webster Gateway: "medullary"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Medullary \Med"ul*la*ry\, a. [L. medullaris, fr. medulla marrow:
cf. F. m['e]dullaire.]
1. (Anat.)
(a) Pertaining to, consisting of, or resembling, marrow or
medulla.
(b) Pertaining to the medula oblongata.
2. (Bot.) Filled with spongy pith; pithy.
{Medullary groove} (Anat.), a groove, in the epiblast of the
vertebrate blastoderm, the edges of which unite, making a
tube (the medullary canal) from which the brain and spinal
cord are developed.
{Medullary rays} (Bot.), the rays of cellular tissue seen in
a transverse section of exogenous wood, which pass from
the pith to the bark.
{Medullary sheath} (Anat.), the layer of white semifluid
substance (myelin), between the primitive sheath and axis
cylinder of a medullated nerve fiber.
From WordNet (r) 1.7 (wn)
medullary
adj 1: containing or consisting of or resembling bone marrow
2: of or relating to the medulla oblongata
3: of or relating to the medulla of any body part
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