William Herschel Discovered This Type of Radiation
This page is the CodyCross answer for the clue below from Casino, Group 277, Puzzle 3 (Four of a Kind).
Question is: William Herschel Discovered This Type of Radiation
and the answer is: INFRARED
Word Meaning:
INFRARED — (uncountable) The electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation, having a wavelength between 700 nm and 1 mm.
Definitions from Wiktionary.