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Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A tri(aminophenyl)methane hydrochloride; an important red biologic stain used in Schiff reagent to detect cellular DNA (Feulgen stain), mucopolysaccharides (periodic acid-Schiff stain), and proteins (ninhydrin-Schiff stain). Full definition →
Etymology from Wiktionary, CC BY-SA 4.0.