English Explanatory Dictionary

fluoresce

English dictionary entry

Meanings

verb
  1. To emit electromagnetic radiation, especially visible light, when absorbing radiation of some other wavelength.
  2. To cause to fluoresce; to make fluorescent.
  3. Of colours, to be very bright; to be so bright as to appear to radiate as a light source.

Pronunciation

/fləˈɹɛs/ /flʊəˈɹɛs/ /flɔˈɹɛs/ LL-Q1860 (eng)-Vealhurl-fluoresce.wav

Word forms

fluoresce fluoresces fluorescing fluoresced

Etymology

Etymology tree Proto-Indo-European *bʰel-der. Proto-Indo-European *bʰlewH-der. Proto-Indo-European *bʰluH-yé-ti? Latin fluō Proto-Indo-European *-os Proto-Indo-European *-s Proto-Indo-European *-ōs Proto-Italic *-ōs Latin -or Latin fluorbor. English fluor Proto-Indo-European *-tósder. Ancient Greek -της (-tēs)der. Ancient Greek -ῑ́της (-ī́tēs)der. Latin -ītēsbor. French -iteder. English -ite English fluorite Middle Low German sparder. Old English spærstān Middle English sparston English sparstonebf. English spar blend English fluorspar Proto-Indo-European *-éh₁ti Proto-Indo-European *-sḱéti Proto-Indo-European *-éh₁sḱeti Proto-Italic *-ēskō Latin -ēscō Latin -escensder. English -escence English fluorescencebf. English fluoresce Back-formation from fluorescence.

Related words

fluorescence fluorescent fluorescer fluorescently calesce recalesce

Derived words

autofluoresce autofluorescing biofluoresce fluorescamine fluorescein fluorescin
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