Clark level
Pronunciation: klahrk
Definition: the level of invasion of primary malignant melanoma of the skin; limited to the epidermis, I; into the underlying papillary dermis, II; to the junction of the papillary and reticular dermis, III; into the reticular dermis, IV; into the subcutaneous fat, V. The prognosis is worse with each successive deeper level of invasion.
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.
