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Of or designating the biogeographic region that includes southern Mexico, Central and South America, and the West Indies.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Zoology) of or denoting a zoogeographical region consisting of South America and North America south of the tropic of Cancer
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Ne•o•trop•i•cal(ˌni oʊˈtrɒp ɪ kəl)
belonging to a zoogeographical division comprising that part of the New World extending from the tropic of Cancer southward.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.