noun🔗ShareAmniotasAny of the Amniota group of vertebrates having an amnion during the development of the embryo; mammals, birds and reptiles."Because their embryos develop inside protective membranes, including the amnion, humans, chickens, and lizards are all considered amniotes. "Debido a que sus embriones se desarrollan dentro de membranas protectoras, incluido el amnios, los humanos, los pollos y los lagartos se consideran amniotas.organismanimalbiologyscienceChat with AIVocabulary GamePractice Reading