Meanings
nounsulphindigotic acid (uncountable)
- obsoleteuncountablechemistryA sulfonic acid obtained by dissolving indigo in sulfuric acid. It was once used as a dye.
Cite this entry
APA
sulphindigotic acid. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/sulphindigotic%20acid
MLA
“sulphindigotic acid.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sulphindigotic%20acid. Accessed November 5, 2026.
Chicago
WatkinsX Dictionary, s.v. “sulphindigotic acid,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/sulphindigotic%20acid.
Source: sulphindigotic acid on Wiktionary, CC BY-SA 4.0.