\Mi`cro*cos"mic\, Microcosmical \Mi`cro*cos"mic*al\,
a. [Cf. F. microcosmique.]
Of or pertaining to the microcosm.
{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}.