Adjective
Of or pertaining to actinism; as, actinic rays.
Source: Webster's dictionaryThe greatest advantage of PDT is the ability to selectively treat an entire area of skin damage and precancerous actinic keratoses (blanket or field treatment). Source: Internet
Elastotic wrinkles are permanent and appear primarily on the face, neck and hands and actinic wrinkles become very deep with age, forming a typical pattern across the forehead and round the eyes and mouth and these may eventually join across the cheeks. Source: Internet