Meanings
nounmethylene blue (uncountable)
- uncountablechemistryA heterocyclic aromatic chemical compound with many uses in biology and chemistry.
Synonyms: methylthioninium chloride
Synonyms & antonyms
nounA heterocyclic aromatic chemical compound with many uses in biology and chemistry.
Similar
More synonyms by meaning
nouna dark green dye used as a stain, an antiseptic, a chemical indicator, and an antidote in cyanide poisoning
Similar
methylthionine chloride
Also see
Synonym sets from Open English WordNet, CC BY 4.0.
Cite this entry
APA
methylene blue. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/methylene%20blue
MLA
“methylene blue.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/methylene%20blue. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “methylene blue,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/methylene%20blue.
Source: methylene blue on Wiktionary, CC BY-SA 4.0.