# Why is microcosmic salt called so?

I really see no relation between the terms microcosmic and the salt's structural formula, $\ce{Na(NH4)HPO4.4H2O}$.

Devoting sufficient time on Google didn't help at all.

Information about the name of this compound is what I'm searching for, thanks in advance for sharing.

• From Meriam Webster Dictionary Online translation of New Latin sal microcosmicus; from the fact that it was originally obtained from human urine- still not enough information to discern the link between microcosmicus and urine. – user2617804 Aug 2 '15 at 8:12