a combining form meaning “marrow,” “of the spinal cord,” used in the formation of compound words: myelocyte.
Also especially before a vowel, myel-.

Origin of myelo-

combining form representing Greek myelós marrow Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for myelo-



Spinal cord:myelitis.
Bone marrow:myeloma.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.