an animal that belongs to the Anamnia group of vertebrates characterized by the lack of the amnion fetal membrane during the embryonic stage of development 無羊膜類に属する動物 - EDR日英対訳辞書
the classification of vertebrate animals which lack the amnion fetal membrane in the embryonic stage of development, including fish and amphibians, called the Anamnia group
無羊膜類という動物分類 - EDR日英対訳辞書
the median umbilical ligament is formed as the allantoic stalk during fetaldevelopment and lasts through life.
尿膜管は、胎児が発育する間に尿膜の茎として形成され、生涯を通じて残存する。 - PDQ®がん用語辞書 英語版
Community businesses are wide-ranging, including health, medical and nursing care, child rearing, environmental conservation and recycling, life long learning and community development. It is necessary to continue to provide an environment for encouraging these efforts which are still in the fetal stages. コミュニティビジネスは、健康・医療・介護、子育て、環境保全・リサイクル、生涯学習、まちづくり等多岐にわたるが、いまだ胎動期にあるこうした取組みを促進するための環境を整備していくことが必要である。 - 経済産業省