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Thesaurus: amniota

That group of vertebrates which develops in its embryonic life the envelope called the amnion. It comprises the reptiles, the birds, and the mammals.

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Definitions

  1. n. pl. That group of vertebrates which develops in its embryonic life the envelope called the amnion. It comprises the reptiles, the birds, and the mammals.
  2. n. higher vertebrates (reptiles, birds and mammals) possessing an amnion during development
  3. That group of vertebrates which develops in its embryonic life the envelope called the amnion. It comprises the reptiles, the birds, and the mammals.
  4. That group of vertebrates which develops in its embryonic lifethe envelope called the amnion. It comprises the reptiles, the birds,and the mammals.
  5. n higher vertebrates (reptiles, birds and mammals) possessing an amnion during development