7 letters · 13 points in Scrabble
noun the environment as it relates to living organisms
noun the branch of biology concerned with the relations between organisms and their environment
originCalque of German Ökologie (coined in 1866 by Ernst Haeckel), from Ancient Greek οἶκος (oîkos, “house”) + -λογία (-logía, “study of”). By surface analysis, eco- + -logy.
Etymology from Wiktionary, CC BY-SA 3.0