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purpurin

American  
[pur-pyoo-rin] / ˈpɜr pyʊ rɪn /

noun

Chemistry.

  1. a reddish, crystalline, anthraquinone dye, C 1 4 H 5 O 2 (OH) 3 , isomeric with flavopurpurin.

purpurin British  
/ ˈpɜːpjʊrɪn /

noun

  1. a red crystalline compound used as a stain for biological specimens; 1,2,4-trihydroxyanthraquinone. Formula: C 14 H 5 O 2 (OH) 3

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of purpurin

1830–40; < Latin purpur ( a ) purple + -in 2

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.