teratogen

(teratology) Any agent or substance which can cause malformation of an embryo or birth defects.

Japanese Meaning

胚の奇形や先天的な欠損を引き起こす可能性のある要因、すなわち、胎児に異常な発達をもたらす物質や薬剤など。

The researcher warned pregnant participants to avoid any known teratogen during the first trimester.

研究者は妊娠初期の妊婦に、既知の催奇形物質を避けるよう警告した。

Sense（1）

(teratology) Any agent or substance which can cause malformation of an embryo or birth defects.

teratogens

（ plural ）