Medical Dictionary

poliosis po·li·o·sis (pō'lē-ō'sĭs)
An absence or lessening of melanin in hair of the scalp, brows, or lashes.

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