from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The study of the mutual interrelationships between organisms and their environment; branch of biology; former term for ecology
  • n. The environmental or sociological influence on a person

from The Century Dictionary and Cyclopedia

  • n. The sum of human knowledge concerning the relations of an organism to its environment.


meso- + -logy; a compound with components derived from Ancient Greek μέσος (mésos, "meso-, middle") + -λογία (-logía, "-logy, branch of study"). The term arose in various European languages c. 1850, but did not exist in Ancient Greek. (Wiktionary)


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