Myeloidin
My`e`loid´in
| n. | 1. | (Physiol. Chem.) A substance, present in the protoplasm of the retinal epithelium cells, and resembling, if not identical with, the substance (myelin) forming the medullary sheaths of nerve fibers. |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.