methylene blue

/ˌmɛθəlin blu/
IPA guide

Definitions of methylene blue
  1. noun
    a dark green dye used as a stain, an antiseptic, a chemical indicator, and an antidote in cyanide poisoning
    synonyms: methylthionine chloride
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    type of:
    thiazine
    a compound made up of a ring of four carbon atoms and one sulfur atom and one nitrogen atom
    stain
    (microscopy) a dye or other coloring material that is used in microscopy to make structures visible
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