| safranin O | A mixture of dimethyl-and trimethylphenosafranin chloride, a basic red dye that exhibits orange metachromasia; used in histology as a nuclear stain, in microbiology as a counterstain in the Gram method, and to demonstrate enterochromaffin. (05 Mar 2000) |
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| safranin | <chemistry> An orange-red dyestuff extracted from the saffron. A red dyestuff extracted from the safflower, and formerly used in dyeing wool, silk, and cotton pink and scarlet. Synonym: Spanish red, China lake, and carthamin. An orange-red dyestuff prepared from certain nitro compounds of creosol, and used as a substitute for the safflower dye. Source: Websters Dictionary (01 Mar 1998) |
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