(organic chemistry) An acid which occurs in opium and may be obtained by oxidizing narcotine.

plural of meconidium

(zoology) A kind of gonophore produced by hydroids of the genus Gonothyraea (Campanulariidae), having tentacles, and otherwise resembling a free medusa, but remaining attached by a pedicel.

(chemistry) A substance regarded as an anhydride of meconinic acid, found in opium.

plural of meconophagist

A condition where the meconium becomes thickened and congested in the ileum, often the first sign of cystic fibrosis.

Relating to the meconium.

plural of meconopsis

plural of meconium

Alternative form of meconin