fetus 也作 foe.tus
n.(名词)【复数】 fe.tus.es The unborn young of a viviparous vertebrate having a basic structural resemblance to the adult animal.胎:基本结构与成年动物相似的胎生脊椎动物未出生的幼子In human beings, the unborn young from the end of the eighth week after conception to the moment of birth, as distinguished from the earlier embryo.胎儿:人类从开始怀孕的第八个星期到出生这一期间的有别于更早期的胚胎的幼儿
来源:Middle English 中古英语 from Latin * see dhô(i)- 源自 拉丁语 *参见 dhô(i)-