fetus

英 ['fi?t?s] 美['fit?s]

GRETEM8IELTS擴(kuò)展詞匯

復(fù)數(shù):?fetuses;

1. 三大兒：胎兒(fetus)、嬰兒(infant)、孤兒(orphan)。

fetus 胎兒

來自fe, 吮吸，吸奶，詞源同female, filial. 用來指胎兒。

fetus (n.): late 14c., "the young while in the womb or egg" (tending to mean vaguely the embryo in the later stage of development), from Latin fetus (often, incorrectly, foetus) "the bearing or hatching of young, a bringing forth," from Latin base *fe- "to generate, bear," also "to suck, suckle" (see fecund).

In Latin, fetus sometimes was transferred figuratively to the newborn creature itself, or used in a sense of "offspring, brood" (as in Horace's "Germania quos horrida parturit Fetus"), but this was not the basic meaning. It also was used of plants, in the sense of "fruit, produce, shoot," and figuratively as "growth, production." The spelling foetus is sometimes attempted as a learned Latinism, but it is not historic.

2. Microscopic examination of a cell's chromo-somes can reveal the sex of the fetus.: 利用顯微鏡檢查細(xì)胞染色體可以發(fā)現(xiàn)胎兒的性別。

3. No one knows why a fetus is not automatically rejected by the mother's immune system.: 沒有人知道為什么母親的免疫系統(tǒng)不會自動排斥胎兒。

4. Unfortunately, his wife had just given birth to a nonviable fetus.: 不幸地是，他妻子剛生下了一個不能成活的胎兒。

5. A routine scan revealed abnormalities in the fetus.: 一次常規(guī)掃描發(fā)現(xiàn)胎兒畸形。