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[nok-chool] /ˈnɒk tʃul/
a large reddish insectivorous bat, Nyctalus noctula, common to Europe and Asia.
1765-75; < French < Italian nottola a bat, owl ≪ Latin noctua night owl. See noctuid, -ule Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for noctule


any of several large Old World insectivorous bats of the genus Nyctalus, esp N. noctula: family Vespertilionidae
Word Origin
C18: probably from Late Latin noctula small owl, from Latin noctua night owl
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Article for noctule

any of about six species of vesper bats (family Vespertilionidae) found in Europe and Asia. Noctules are golden to yellowish or dark brown, with a paler underside. They are 5-10 cm (2-4 inches) long without the 3.5-6.5-cm (1.4-2.6-inch) tail. They are swift, erratic fliers and commonly leave their roosts (generally in caves or buildings) at or before sunset. They eat insects and apparently are fond of beetles. The best-known and most widely distributed species is the Eurasian N. noctula, a reddish brown migratory inhabitant of wooded regions

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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