n. pl. e·col·o·gies
a. The science of the relationships between organisms and their environments.
b. The relationship between organisms and their environment.
2. See human ecology.
[German Ökologie : Greek oikos, house; see weik-1 in the Appendix of Indo-European roots + German -logie, study (from Greek -logiā, -logy).]
ec′o·logi·cal (ĕk′ə-lŏjĭ-kəl, ē′kə-), ec′o·logic (-ĭk) adj.
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