蛍けい光こう物ぶっ質しつ

noun

fluorescent substance; phosphor

Technical term used in physics, chemistry, and materials science. Refers to a substance that emits light when exposed to radiation or other excitation. 蛍光体 is a closely related term often used for phosphors in displays and lighting.

See also: 蛍光体

• 蛍けい光こう灯とうの内うち側がわには蛍けい光こう物ぶっ質しつが塗ぬられている。

  The inside of a fluorescent lamp is coated with a fluorescent substance.

• この鉱こう物ぶつは紫し外がい線せんを当あてると蛍けい光こう物ぶっ質しつのように光ひかる。

  This mineral glows like a phosphor when exposed to ultraviolet light.