a combining form representing ecology, in the formation of compounds (ecosystem; ecotype); also with the more general sense “environment,” “nature,” “natural habitat” (ecocide; ecolaw; ecopolitics).
British Dictionary definitions for eco-
eco-
combining form
1.
denoting ecology or ecological: ecocide, ecosphere
Word Origin and History for eco-
word-forming element referring to the environment and man's relation to it, abstracted from ecology, ecological; attested from 1969.