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Webster 1913 Edition


Medullary

Med′ul-la-ry

,
Adj.
[L.
medullaris
, fr.
medulla
marrow: cf. F.
médullaire
.]
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.

Definition 2024


medullary

medullary

English

Adjective

medullary (not comparable)

  1. (anatomy) Pertaining to, consisting of, or resembling, marrow or medulla.
  2. (botany) Filled with spongy pith; pithy.

Derived terms

  • medullary sheath

Translations

References

  • medullary in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913