from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The branch of ecology that deals with the biological relationship between an individual organism or an individual species and its environment.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. one of two broad subdivisions of ecology, which studies the individual organism or species.


From Ancient Greek via Latin auto- (“on itself”) +‎ ecology. (Wiktionary)


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  • A branch of ecology dealing with the individual organism or species in relation to its environment. Compare synecology.

    October 24, 2008