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[am-nee-oht] /ˈæm niˌoʊt/
any vertebrate of the group Amniota, comprising the reptiles, birds, and mammals, characterized by having an amnion during the embryonic stage.
Compare anamniote.
Origin of amniote
< New Latin amniota; see amnion, -ote Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for amniote
  • They also reduced their reliance on wetland habitats through a crucial evolutionary adaptation known as the amniote egg.
British Dictionary definitions for amniote


any vertebrate animal, such as a reptile, bird, or mammal, that possesses an amnion, chorion, and allantois during embryonic development Compare anamniote
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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amniote in Science
Any of the vertebrates that have an amnion during embryonic development. Reptiles, birds, and mammals are amniotes.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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