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ornithology

[awr-nuh-thol-uh-jee] /ˌɔr nəˈθɒl ə dʒi/
noun
1.
the branch of zoology that deals with birds.
Origin
1645-1655
1645-55; < Neo-Latin ornithologia. See ornitho-, -logy
Related forms
ornithological
[awr-nuh-thuh-loj-i-kuh l] /ˌɔr nə θəˈlɒdʒ ɪ kəl/ (Show IPA),
ornithologic, adjective
ornithologically, adverb
ornithologist, noun
unornithological, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for ornithological

ornithology

/ˌɔːnɪˈθɒlədʒɪ/
noun
1.
the study of birds, including their physiology, classification, ecology, and behaviour
Derived Forms
ornithological (ˌɔːnɪθəˈlɒdʒɪkəl) adjective
ornithologically, adverb
ornithologist, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for ornithological
ornithological
1802, from ornithology.
ornithology
1670s, from Mod.L. ornithologia (1590s), from Gk. ornithologos, from ornitho- (q.v.) + -logia "study."
Online Etymology Dictionary, © 2010 Douglas Harper
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ornithological in Science
ornithology
  (ôr'nə-thŏl'ə-jē)   
The scientific study of birds.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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