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amniote

noun
am·​ni·​ote | \ ˈam-nē-ˌōt How to pronounce amniote (audio) \

Definition of amniote

: any of a group (Amniota) of vertebrates that undergo embryonic or fetal development within an amnion and include the birds, reptiles, and mammals
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Other Words from amniote

amniote adjective

Examples of amniote in a Sentence

Recent Examples on the Web

 This new kind of animal, that Dawson would name Hylonomus lyelli, remains the earliest amniote in the fossil record. — Hillary Maddin, Smithsonian, "Tiny Animals Trapped in Fossil Trees Help Reveal How Fauna Moved Onto Land," 18 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'amniote.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of amniote

1878, in the meaning defined above

History and Etymology for amniote

New Latin Amniota, from amnion

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