ecological

• œcological (archaic)

From ecology +‎ -ical.

• IPA^(key): /ˌiːkəˈlɒd͡ʒɪkl̩/

ecological (comparative more ecological, superlative most ecological)

1. Relating to ecology, the interrelationships of organisms and their environment.
   • 2013 May-June, Katie L. Burke, “In the News”, in American Scientist, volume 101, number 3, page 193:

     Bats host many high-profile viruses that can infect humans, including severe acute respiratory syndrome and Ebola. A recent study explored the ecological variables that may contribute to bats’ propensity to harbor such zoonotic diseases by comparing them with another order of common reservoir hosts: rodents.

2. Not harmful to the environment.

• (not harmful to the environment): ecologically friendly, environmentally friendly

• ecologic
• ecologist
• ecosystem
• ecologically