noun
amniocentesis; amniotic fluid test
Medical procedure to sample amniotic fluid for prenatal diagnosis.
高齢出産では羊水検査を勧められることがある。
In older pregnancies, amniocentesis may be recommended.
Prenatal diagnosis in general; 羊水検査 is one specific method.
Compound of 羊水 (amniotic fluid) + 検査 (examination, test).