胎たい便べんたいべんMeanings1nounmeconiummedicineMedical term for the first stool of a newborn infant.新しん生せい児じの胎たい便べんは通つう常じょう、生後せいごに24時間じゅうよじ以内かんいないに排はい出しゅつされる。A newborn's meconium is usually passed within 24 hours after birth.
