Amniote

ahd-5
  • noun. Any of numerous vertebrates of the group Amniota, characteristically having an amnion during embryonic development and including the reptiles, birds, and mammals.
  • The Century Dictionary and Cyclopedia
  • Possessing an amnion; amniotic.
  • noun. A member of the Amniota.
  • the GNU version of the Collaborative International Dictionary of English
  • noun. any member of the Amniota.
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • noun. Any of the Amniota group of vertebrates having an amnion during the development of the embryo; mammals, birds and reptiles.
  • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • noun. any member of the Amniota
  • Word Usage
    "Impedance matching of the tympanic middle ear occurred very early in amniote evolution."
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    Hypernym
    Words that are more generic or abstract