/ ˌflɔːˈresnt; NAmE ; ˌflʊəˈr-; NAmE also ˌflʊˈr-/ adjective
1.
( of substances ) producing bright light by using some forms of radiation :
a fluorescent lamp (= one that uses such a substance)
fluorescent lighting
➡ note at bright
2.
( of a colour, material, etc. ) appearing very bright when light shines on it; that can be seen in the dark :
fluorescent armbands worn by cyclists
—compare phosphorescent ➡ note at bright
► fluor·es·cence noun [ U ]