also: ルミネセンス
noun
Scientific term for emission of light not caused by heat; used in physics, chemistry, and materials science.
ルミネッセンスは化学反応や放射線によって生じることがある。
Luminescence can be produced by chemical reactions or radiation.
蛍光 (fluorescence) is a specific type of luminescence where emission stops almost immediately after the excitation source is removed.
燐光 (phosphorescence) is a type of luminescence where emission continues for a noticeable time after excitation stops.
Borrowed from English 'luminescence', ultimately from Latin 'lumen' (light).