fluorene
noun
fluorene is a noun meaning “A polycyclic aromatic hydrocarbon consisting of two benzene rings joined together directly, and also via a methylene bridge; it is used in…” (English Wiktionary, September 2026). It is spelled F-L-U-O-R-E-N-E, and it appears about once in every 56 million words in written English (wordfreq, 2021 data). The plural of fluorene is fluorenes.
What does fluorene mean?
noun
- 1
A polycyclic aromatic hydrocarbon consisting of two benzene rings joined together directly, and also via a methylene bridge; it is used in light-emitting diodes.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of fluorene
- fluorenes plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is fluorene?
Fluorene appears about once in every 56 million words in written English, the 234,209th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Where does fluorene come from?
By surface analysis, fluoro- (“fluorine”) + -ene.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).