MECONIUM
meconium
(noun) thick dark green mucoid material that is the first feces of a newborn child
Source: WordNet® 3.1
Etymology
Noun
meconium (countable and uncountable, plural meconiums)
(medicine) A dark green mass, the contents of the fetal intestines during the later stages of mammalian gestation, that forms the first faeces of the newborn
(obsolete) opium
Anagrams
• encomium
Source: Wiktionary
Me*co"ni*um, n. Etym: [L., fr. Gr. (Med.)
(a) Opium. [Obs.]
(b) The contents of the fetal intestine; hence, first excrement.
Source: Webster’s Unabridged Dictionary 1913 Edition