ECOLOGICAL
ecological, ecologic, bionomical, bionomic
(adjective) of or relating to the science of ecology; “ecological research”
ecological, ecologic
(adjective) characterized by the interdependence of living organisms in an environment; “an ecological disaster”
Source: WordNet® 3.1
Etymology
Adjective
ecological (comparative more ecological, superlative most ecological)
Relating to ecology, the interrelationships of organisms and their environment.
Not harmful to the environment.
Synonyms
• (not harmful to the environment): ecologically friendly, environmentally friendly
Source: Wiktionary