a yellow, crystalline substance, C13H10O, soluble in ether and slightly soluble in alcohol, used in organic synthesis and as a fungicide.
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British Dictionary definitions for xanthene
a yellowish crystalline heterocyclic compound used as a fungicide; benzo-1,4-pyran. Its molecular structural unit is found in many dyes, such as rhodamine and fluorescein. Formula: CH 2 (C 6 H 4) 2 O
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