Webster's 1828 Dictionary
MECONIUM
n.[Gr. poppy. ] 1. The juice of the white poppy, which has the virtues of opium.
2. The first faeces of infants.
Webster's 1913 Dictionary
MECONIUM
Me *co "ni *um, n. Etym: [L., fr. Gr. (Med. )(a ) Opium. [Obs. ] (b ) The contents of the fetal intestine; hence, first excrement.
New American Oxford Dictionary
meconium
me co ni um |miˈkōnēəm məˈkoʊniəm | ▶noun Medicine the dark green substance forming the first feces of a newborn infant. ORIGIN early 18th cent.: from Latin, literally ‘poppy juice, ’ from Greek mēkōnion, from mēkōn ‘poppy. ’
Oxford Dictionary
meconium
meconium |mɪˈkəʊnɪəm | ▶noun [ mass noun ] Medicine the dark green substance forming the first faeces of a newborn infant. ORIGIN early 18th cent.: from Latin, literally ‘poppy juice ’, from Greek mēkōnion, from mēkōn ‘poppy ’.