Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
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noun
The emission of light (or other electromagnetic radiation) by a material when stimulated by the absorption of radiation or of a subatomic particle.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: natural-sciences, physical-sciences, physics
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
The light so emitted.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
light emitted during absorption of radiation of some other (invisible) wavelength
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
Broader terms: light, visible light, visible radiation
Narrower terms: autofluorescence, phosphorescence
History
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 fluorescence Coined by British physicist George Stokes in 1852 from fluorspar + -escence.
Across languages
20 source translations are retained for this English entry.
