Medical Dictionary


adj ac·tin·ic \ak-ˈtin-ik\

Medical Definition of ACTINIC

:  of, relating to, resulting from, or exhibiting chemical changes produced by radiant energy especially in the visible and ultraviolet parts of the spectrum <actinic injury and carcinogenesis—Journal of the American Medical Association> <actinic keratosis>
ac·tin·i·cal·ly \-i-k(ə-)lē\ adverb
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