{ } a. [ Cf. F. microcosmique. ] Of or pertaining to the microcosm. [ 1913 Webster ]

Microcosmic salt (Chem.), a white crystalline substance obtained by mixing solutions of sodium phosphate and ammonium phosphate, and also called hydric-sodic-ammonic-phosphate. It is a powerful flux, and is used as a substitute for borax as a blowpipe reagent in testing for the metallic oxides. Originally obtained by the alchemists from human urine, and called sal microcosmicum. [ 1913 Webster ]