• synonyms


[floo r-een, -in, flawr-, flohr-]
noun Chemistry.
  1. a white, crystalline, water-insoluble solid, C13H10, used chiefly in the manufacture of resins and dyes.
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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. 2018

Examples from the Web for fluorene

Historical Examples

  • It also acts as a chromogenic centre when double bonds or ethylenic linkages are present, as in fluorene ketone or fluorenone.

    Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1


British Dictionary definitions for fluorene


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