<p><strong>Noun</strong></p><ul><li>Any of a class of chiefly red organic dyes, phenazine derivatives, used for dyeing wool, silk, etc. Also called phenosafranine.</li><li>A purplish-red, water-soluble dye, C₁₈H₁₄N₄, used for textiles and as a stain in microscopy.</li></ul>