superfluorescence
/ˌsuːpəflʊəˈrɛsns/ /ˌsuːpəflɔːˈrɛsns/ /ˌsuːpəflʊˈrɛsns/Physics
noun
The collective emission of fluorescent radiation by a system of excited atoms or ions as a result of the spontaneous correlation of excited atomic states.
Origin
1960s; earliest use found in Journal of Applied Physics. From super- + fluorescence.