Technique of Heating Ore That Ended the Stone Age
This page is the CodyCross answer for the clue below from House of Horrors, Group 1108, Puzzle 4 (Condemned Property).
Question is: Technique of Heating Ore That Ended the Stone Age
and the answer is: SMELTING
Word Meaning:
SMELTING — present participle and gerund of smelt
Definitions from Wiktionary.