amniotic fluid
Medical and everyday term for the fluid surrounding a fetus.
羊水検査は妊娠中に行われることがあります。
Amniotic fluid testing may be performed during pregnancy.
When the water breaks, amniotic fluid leaks out.
amniocentesis
oligohydramnios
A Sino-Japanese term from Chinese 羊水, “amniotic fluid.” The historical reason for the use of 羊 is uncertain.