Meanings
- dateduncountablechemistryA white salt, extracted from urine; once used in the preparation of phosphorus, and used in analytical tests for some metals; ammonium sodium hydrogenphosphate (NH₄)NaHPO₄.
Origin
From its alchemical name sal microcosmicum.
Full word history & related roots →Cite this entry
microcosmic salt. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/microcosmic%20salt
“microcosmic salt.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/microcosmic%20salt. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “microcosmic salt,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/microcosmic%20salt.
Source: microcosmic salt on Wiktionary, CC BY-SA 4.0.