fluorene

[ floo r-een, -in, flawr-, flohr- ]
/ ˈflʊər in, -ɪn, ˈflɔr-, ˈfloʊr- /
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noun Chemistry.

a white, crystalline, water-insoluble solid, C13H10, used chiefly in the manufacture of resins and dyes.

Origin of fluorene

From French, dating back to 1880–85; see origin at fluor-, -ene
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for fluorene

fluorene

/ (ˈflʊəriːn) /

noun

a white insoluble crystalline solid used in making dyes. Formula: (C 6 H 4) 2 CH 2

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