Dictionary
toluidine blue
noun
Definition of TOLUIDINE BLUE
: a basic thiazine dye that is related to methylene blue and is used as a biological stain
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First Known Use of TOLUIDINE BLUE
1898
Medical Dictionary
toluidine blue
noun
Medical Definition of TOLUIDINE BLUE
: a basic thiazine dye that is related to methylene blue and is used as a biological stain and especially formerly as an antihemorrhagic drug—called also tolonium chloride
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