[ ˌlu:mɪ'nɛs(ə)ns ]
■ noun the emission of light by a substance that has not been heated, as in fluorescence and phosphorescence.
Derivatives
luminescent adjective
Origin
C19: from L. lumen , lumin- 'light' + -escence (denoting a state).
[ ˌlu:mɪ'nɛs(ə)ns ]
■ noun the emission of light by a substance that has not been heated, as in fluorescence and phosphorescence.
Derivatives
luminescent adjective
Origin
C19: from L. lumen , lumin- 'light' + -escence (denoting a state).
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004