amniota

Amniota

Am`ni*o"ta\, n. pl. [NL. See Amnion.] (Zo["o]l.) That group of vertebrates which develops in its embryonic life the envelope called the amnion. It comprises the reptiles, the birds, and the mammals.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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