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.

Gas Used In Incandescent Bulbs To Intensify Light - Games CodyCross Answers | CodyCross Solutions