Gas Used in Incandescent Bulbs to Intensify Light
This page is the CodyCross answer for the clue below from Games, Group 952, Puzzle 3 (Dungeon Master).
Question is: Gas Used in Incandescent Bulbs to Intensify Light
and the answer is: HALOGEN
Word Meaning:
HALOGEN — (chemistry) Any element of group 17, i.e. fluorine, chlorine, bromine, iodine, astatine and tennessine.
Definitions from Wiktionary.