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anamniote

American  
[an-am-nee-oht] / ænˈæm niˌoʊt /

noun

  1. any of the vertebrates of the group Anamnia (Anamniota), comprising the cyclostomes, fishes, and amphibians, characterized by the absence of an amnion during the embryonic stage.

anamniote British  
/ ænˌæmnɪˈɒtɪk, ænˈæmnɪəʊt /

noun

  1. any vertebrate animal, such as a fish or amphibian, that lacks an amnion, chorion, and allantois during embryonic development Compare amniote

"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

Other Word Forms

  • anamniotic adjective

Etymology

Origin of anamniote

< New Latin Anamniota. See an- 1, amniote

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.