- orthokeratosis
- Formation of an anuclear keratin layer, as in the normal epidermis. [ortho- + G. keras, horn, + -osis, condition]
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or·tho·ker·a·to·sis (or″tho-ker″ə-toґsis) thickening of the stratum corneum without parakeratosis, i.e., without the abnormal retention of keratinocyte nuclei.
Medical dictionary. 2011.