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

  • n. The branch of biology that deals with animals and animal life, including the study of the structure, physiology, development, and classification of animals.
  • n. The animal life of a particular area or period: the zoology of Alaska; the zoology of the Pleistocene.
  • n. The characteristics of a particular animal group or category: the zoology of mammals.
  • n. A book or scholarly work on zoology.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. that part of biology which relates to the animal kingdom, including the structure, embryology, evolution, classification, habits, and distribution of all animals, both living and extinct.
  • n. a treatise on this science.


from Wiktionary, Creative Commons Attribution/Share-Alike License

From Ancient Greek ζῷον (zōon, "animal") + λόγος (logos, "knowledge")



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