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[ey-vee-uh n] /ˈeɪ vi ən/
of or relating to birds.
Origin of avian
1865-70; avi- + -an Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for avian
  • Bird feeders will attract avian visitors to your garden, for sure.
  • Yet it's unclear whether this vaccine will work against a more virulent strain of avian influenza.
  • In the annals of science fiction, humans and non-avian dinosaurs have been brought together in a variety of ways.
  • Two new studies identify some of these differences and make startling conclusions about what they might mean for avian species.
  • Contemporary avian and mammalian scavengers aren't exclusively torpid and slow.
  • The brain, avian or human, does something similar naturally.
  • They have been happy to perform public dress rehearsals to test their response to bomb attacks and avian flu.
  • The aim is to enable a quick response to any outbreak of avian flu, cholera, malaria or dengue fever.
  • In the avian case, there simply aren't enough scientists to count birds.
  • There are two main theories for how avian flight evolved.
British Dictionary definitions for avian


of, relating to, or resembling a bird
Word Origin
C19: from Latin avis bird
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 avian

"pertaining to birds," 1870, from Latin avis "bird" (see aviary) + -an.

Online Etymology Dictionary, © 2010 Douglas Harper
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avian in Medicine

avian a·vi·an (ā'vē-ən)
Of, relating to, or characteristic of birds.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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avian in Science
Relating to birds.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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