蛍けい光こう増ぞう白はく剤ざい

noun

fluorescent whitening agent; optical brightener

Technical term for a chemical that absorbs UV light and emits visible blue light, making materials appear whiter. Used in detergents, paper, and textiles.

See also: 蛍光染料

• この洗せん剤ざいには蛍けい光こう増ぞう白はく剤ざいが含ふくまれている。

  This detergent contains a fluorescent whitening agent.