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(Elements & Compounds) another name for methylene blue
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|Noun||1.||methylthionine chloride - a dark green dye used as a stain, an antiseptic, a chemical indicator, and an antidote in cyanide poisoning|
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