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medullary |
2 definitions found 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 1.6 [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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