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Orisha
Orissa
Oriya
Orkney Islands
Orlando
orle
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ornithology
or·ni·thol·o·gy [ àwrnə thólləjee ]


noun 
Definition:
 
study of birds: the branch of zoology that deals with the scientific study of birds

or·ni·tho·log·i·cal [ àwrnəthə lójjik'l ] adjective
or·ni·tho·log·i·cal·ly [ àwrnəthə lójjikəlee ] adverb
or·ni·thol·o·gist [ àwrnə thólləjist ] noun
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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