[ pahy-ruh-neen ]
/ ˈpaɪ rəˌnin /

noun Histology.

a xanthine dye used for detecting the presence of RNA.

Origin of pyronine

First recorded in 1890–95, pyronine is from the German word Pyronin, originally a trademark Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for pyronine

[ pīrə-nēn′ ]


Any of several xanthene dyes that are ferric chloride complexes and are used in combination with methyl green to stain for RNA, DNA, and bacteria, and as a tracking dye for RNA in electrophoresis.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.