10 letters · 19 points in Scrabble
noun no longer active; extinguished
noun no longer in existence
noun the reduction of the intensity of radiation as a consequence of absorption and radiation
originFrom late Middle English, borrowed from Latin extinctio (“extinction, annihilation”), from extinguere, past participle extinctus (“to extinguish”); see extinguish.
Etymology from Wiktionary, CC BY-SA 3.0