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Alternative forms[edit]


Calque of German Ökologie (coined by Ernst Haeckel), from Ancient Greek οἶκος (oîkos, house) + -λογία (-logía, study of). By surface analysis, eco- +‎ -logy.


  • (UK) IPA(key): /ɛˈkɒlədʒi/, /ɪˈkɒlədʒi/
  • (file)
  • (US) enPR: ĕkŏlŏjĕ, IPA(key): /i.ˈkɑ.lə.d͡ʒi/
  • Hyphenation: ecol‧ogy
  • Rhymes: -ɒlədʒi


ecology (countable and uncountable, plural ecologies)

  1. (biology) The branch of biology dealing with the relationships of organisms with their environment and with each other.
    • 1949, George R. Stewart, Earth Abides:
      As a graduate student, he was working on a thesis: The Ecology of the Black Creek Area. He had to investigate the relationships, past and present, of men and plants and animals in this region.
    • 2012 January 1, Robert M. Pringle, “How to Be Manipulative”, in American Scientist[1], volume 100, number 1, page 31:
      As in much of biology, the most satisfying truths in ecology derive from manipulative experimentation. Tinker with nature and quantify how it responds.


Derived terms[edit]

Related terms[edit]


The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

See also[edit]


  • ecology at OneLook Dictionary Search
  • ecology in Keywords for Today: A 21st Century Vocabulary, edited by The Keywords Project, Colin MacCabe, Holly Yanacek, 2018.
  • "ecology" in Raymond Williams, Keywords (revised), 1983, Fontana Press, page 110.
  • ecology in The Century Dictionary, New York, N.Y.: The Century Co., 1911

Further reading[edit]