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pyronine

[pahy-ruh-neen]
noun Histology.
  1. a xanthine dye used for detecting the presence of RNA.
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Origin of pyronine

First recorded in 1890–95, pyronine is from the German word Pyronin, originally a trademark
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
pyronine in Medicine

pyronine

(pī′rə-nēn′)
n.
  1. 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.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.