[ecol.o.gy] n, pl -gies [G Okologie, fr. oko- eco- + -logie -logy] (1873) 1: a branch of science concerned with the interrelationship of organisms and their environments
2: the totality or pattern of relations between organisms and their environment
3: human ecology -- eco.log.i.cal also eco.log.ic adj -- eco.log.i.cal.ly adv -- ecol.o.gist n