actinically

/ækˈtɪnɪkli/
adverb
  1. In a way that relates to or involves actinic radiation (light that causes chemical reactions).
    • The paint was tested to see how it would change actinically over time.
    • The material degrades actinically when exposed to direct sunlight.
    • These glasses are treated to block light that acts actinically on the eyes.
What does "actinically" mean? | whatsthatwordmean | whatsthatwordmean