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

  • n. A region that is coextensive with the Neotropical region and is considered one of the primary biogeographic realms.

from The Century Dictionary and Cyclopedia

  • n. In zoögeog., the New World or western hemisphere, considered with reference to the geographical distribution of plants and animals: opposed to Palæogæa.


New Latin : neo- + Greek gaia, earth.
(American Heritage® Dictionary of the English Language, Fourth Edition)


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