mecˈonin noun

A white, fusible, neutral substance (C₁₀H₁₀O₄) existing in opium

mecōˈnium noun

1. (L, poppy-juice) the first faeces of a newborn child, or of a newly emerged insect imago
2. Opium

meconopsˈis noun (pl meconopsˈēs)

(Gr opsis appearance) a plant of the Meconopsis genus of largely Asiatic blue poppies