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[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 Dictionary, © Random House, Inc. 2017.
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pyronine in Medicine

pyronine py·ro·nine (pī'rə-nēn') or py·ro·nin (-nĭn)
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.
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