fetus

胎児

母体内で育つ子の、発生８週を過ぎてから生まれるまでの段階。

やさしい英語で： A baby developing inside its mother's body, from after the eighth week until birth.

• The fetus is growing normally.
• The scan showed the fetus moving its arms.
• Doctors monitor fetuses throughout high-risk pregnancies.

類義語： unborn baby

よく使う表現： developing fetus, human fetus, healthy fetus

胎仔、胎児

まだ生まれていない脊椎動物で、成体の特徴が現れるまで育ったもの。

やさしい英語で： An unborn animal with a backbone, developed enough to show the features of its adult form.

• The cow's fetus was healthy.
• The veterinarian examined two sheep fetuses.
• The developing fetus already had recognizable legs and a tail.

よく使う表現： animal fetus, bovine fetus, developing fetus