Elements; Bright-Burning Light Bulbs
This page is the CodyCross answer for the clue below from Inventions, Group 42, Puzzle 4.
Question is: Elements; Bright-Burning Light Bulbs
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.