Definitions for "Actinic"
Of or pertaining to actinism; as, actinic rays.
Pertaining to changes caused by the ultraviolet rays in the sun.
Pertaining to electromagnetic radiation capable of initiating photochemical reactions, as in photography or the fading of pigments. Because of the particularly strong action of ultraviolet radiation on photochemical processes, the term has come to be almost synonymous with ultraviolet, as in "actinic rays."
keratoses—thick, warty, rough, reddish growths on sun-exposed skin. They may be precancerous to squamous cell carcinoma.
Keywords:  exhibiting, relating
relating to or exhibiting actinism.