Invisible UV Rays Transmitted by the Sun
This page is the CodyCross answer for the clue below from Science Lab, Group 313, Puzzle 4 (Oxidation State).
Question is: Invisible UV Rays Transmitted by the Sun
and the answer is: RADIATION
Word Meaning:
RADIATION — The shooting forth of anything from a point or surface, like diverging rays of light.
Definitions from Wiktionary.