MECONIDINE
Me*con"i*dine, n. (Chem)
Defn: An alkaloid found in opium, and extracted as a yellow amorphous substance which is easily decomposed.
MECONIDIUM
Mec`o*nid"i*um, n. Etym: [NL., dim. of Gr. (Zoöl.)
Defn: A kind of gonophore produced by hydroids of the genus Gonothyræa. It has tentacles, and otherwise resembles a free medusa, but remains attached by a pedicel.
MECONIN
Mec"o*nin, n. Etym: [Cf. F. méconine.] (Chem.)
Defn: A substance regarded as an anhydride of meconinic acid, existing in opium and extracted as a white crystalline substance. Also erroneously called meconina, meconia, etc., as though it were an alkaloid.
MECONINIC
Mec`o*nin"ic, a. (Chem.)
Defn: Pertaining to, or designating, an acid which occurs in opium, and which may be obtained by oxidizing narcotine.
MECONIUM Me*co"ni*um, n. Etym: [L., fr. Gr. (Med.) (a) Opium. [Obs.] (b) The contents of the fetal intestine; hence, first excrement.
MEDAL
Med"al, n. Etym: [F. médaille, It. medaglia, fr. L. metallum metal,
through (assumed) LL. metalleus made of metal. See Metal, and cf.
Mail a piece of money.]