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murexide |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Murexide \Mu*rex"ide\, n. [L. murex the purple fish, purple.] (Chem.) 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}.