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trichostasis spinulosa [trĭ-kŏs′tə-sĭs spī′nyə-lō′sə, spĭn′yə-, trĭk′ə-stā′sĭs] n.
- A condition in which hair follicles are blocked with a keratin plug containing lanugo hairs.
The American Heritage® Stedman’s Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.