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The Collaborative International Dictionary
Medullary

Medullary \Med"ul*la*ry\, a. [L. medullaris, fr. medulla marrow: cf. F. m['e]dullaire.]

  1. (Anat.)

    1. Pertaining to, consisting of, or resembling, marrow or medulla.

    2. 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.

Wiktionary
medullary

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

WordNet
medullary
  1. adj. 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

Wikipedia

Usage examples of "medullary".

Longitudinal section of the shaft, showing the fibrous character of the medullary substance, and the arrangement of the pigmentary matter.

Transverse sections, showing the distinction between the cortical and medullary substances, and the central collection of pigmentary matter, sometimes found in the latter.

To calm this impatience, I spontaneously proposed a consultation, and naturally pronounced your name, which is well known by your fine work on the medullary lesions.

The medullary sheath and the primitive sheath are not, strictly speaking, parts of the nerve cell, but appear to be growths that have formed around it.

Certain of the axons have no primitive sheath and others are without a medullary sheath.

The primitive sheath and the medullary layer protect the axis cylinder, and, according to some authorities, serve to insulate it.

The medullary sheath may also aid in the nourishment of the axis cylinder.

These, on entering, lose the medullary sheath and separate into a number of branches that penetrate the corpuscle in different directions.

Axons without the medullary sheath are found in the sympathetic nerves.

The points of similarity included color, diameter, length, as well as the medullary characteristics.

Exposing blood vessels and medullary cavities to the air can lead to septic inflammation and suppuration, which can kill large pieces of bone.

The microscope showed a great many air-vesicles both in the medullary substance and between the medullary and cortical substance.

This noted operator performed, synchronously, double ovariotomy and resections of portions of the bladder and ileum, for a large medullary carcinomatous growth of the ovary, with surrounding involvement.

The tibia still has some incomplete regeneration about the medullary cavity but appears quite adequate for normal load-bearing function.

Similar roots of Jasmine, especially those of Jasminum fruticans, are sometimes intermixed, and can be distinguished by the absence of indurated pith cells, which occur in Gelsemium, by the abundance of thin-walled starch cells in the pith and in the medullary ray cells (those of Gelsemium being thickwalled and destitute of starch), and by the bast fibres round the sieve tubes.