methyl orange

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meth′yl or′ange


n.
an orange-yellow, slightly water-soluble powder, C14H14N3NaO3S, used chiefly as an acid-base indicator.
[1880–85]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.methyl orange - an azo dye used as an acid-base indicator; used for titrations involving weak bases
acid-base indicator - an indicator that changes color on going from acidic to basic solutions
azo dye - any dye containing one or more azo groups