Dictionary

toluidine blue

toluidine blue

noun

Definition of TOLUIDINE BLUE

:  a basic thiazine dye that is related to methylene blue and is used as a biological stain

First Known Use of TOLUIDINE BLUE

1898

toluidine blue

noun    (Medical Dictionary)

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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