noun🔗Share羊膜动物 Any 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. "由于人类、鸡和蜥蜴的胚胎都在包括羊膜在内的保护膜内发育,因此它们都被认为是羊膜动物。organismanimalbiologyscienceChat with AIVocabulary GamePractice Reading