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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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Short "hint"

A group of vertebrates that develop a thin membranous fluid-filled sac surrounding the embryo

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Usage examples (14)
  • Impedance matching of the tympanic middle ear occurred very early in amniote evolution.
  • Mammary glands evolved in the mammalian lineage after mammals and frogs split from their amniote ancestor.
  • Birds are also clearly diapsids and if every living amniote that isnt a mammal is a diapsid then birds are diapsid reptiles too.
  • Well, I'm supposed to start with a revision of the placodonts and then, "if time allows", to bloat this into an amniote phylogeny.
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The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.