最終更新日：2024/07/28

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(medicine) A dark green mass, the contents of the fetal intestines during the later stages of mammalian gestation, that forms the first feces of the newborn. / (obsolete) Opium.

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meconium

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meconium

noun

(medicine) A dark green mass, the contents of the fetal intestines during the later stages of mammalian gestation, that forms the first feces of the newborn. / (obsolete) Opium.