5 entries under expression topic. ×

18
environmental science(noun, idiom, form, study)
16
human ecology(noun, study, treatment, science)
13
relationship between organisms and environment(noun, study, treatment, science)
-1
environmental protection(noun, idiom, preservation)
-3
environmental control
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APASmart Define. (2015). ecology thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/ecology/thesaurus/synonyms
ChicagoSmart Define. 2015. "ecology thesaurus" https://smartdefine.org/ecology/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, ecology thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/ecology/thesaurus/synonyms>.
MLASmart Define. "ecology thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/ecology/thesaurus/synonyms>