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fluoro

noun, adjective

fluoro is a noun meaning “A fluorescent light” (English Wiktionary, September 2026). It is spelled F-L-U-O-R-O, and it appears about once in every 6 million words in written English (wordfreq, 2021 data). The plural of fluoro is fluoros.

What does fluoro mean?

noun

  1. 1

    AustraliacolloquialA fluorescent light.

adjective

  1. 1

    AustraliaFluorescent.

    And yes, as he peers beyond a boulder, down in the hollow he can make out two figures in khaki moving around a fluoro orange tent.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How do you pronounce fluoro?

  • US
  • UK

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Sumxr-fluoro-.wav, LL-Q1860_(eng)-Tesco250-fluoro-.wav, Wikimedia Commons (author and licence on each file's page).

Forms of fluoro

  • fluor-
  • fluoros plural
  • more fluoro comparative
  • most fluoro superlative

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How common is fluoro?

Fluoro appears about once in every 6 million words in written English, the 74,980th 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).