MUREX
Mu"rex, n.; pl. Murices. Etym: [L., the purple fish.] (Zoöl.)
Defn: A genus of marine gastropods, having rough, and frequently spinose, shells, which are often highly colored inside; the rock shells. They abound in tropical seas.
MUREXAN
Mu*rex"an, n. Etym: [From Murexide.] (Chem.)
Defn: A complex nitrogenous substance obtained from murexide, alloxantin, and other ureids, as a white, or yellowish, crystalline which turns red on exposure to the air; — called also uramil, dialuramide, and formerly purpuric acid.
MUREXIDE
Mu*rex"ide, n. Etym: [L. murex the purple fish, purple.] (Chem.)
Defn: A crystalline nitrogenous substance having a splendid dichroism, being green by reflected light and garnet-red by transmitted light. It was formerly used in dyeing calico, and was obtained in a large quantities from guano. Formerly called also ammonium purpurate.
MUREXOIN
Mu*rex"o*ïn, n. (Chem.)
Defn: A complex nitrogenous compound obtained as a scarlet crystalline substance, and regarded as related to murexide.
MURIATE
Mu"ri*ate, n. Etym: [See Muriatic.] (Chem.)
Defn: A salt of muriatic hydrochloric acid; a chloride; as, muriate of ammonia.