蛍けい光こう増ぞう白はく剤ざいMeaningsNoun1. fluorescent whitening agent; fluorescent brightener; fluorescent bleachKanji used蛍firefly光ray増increase白white剤chemical substanceComposed of蛍けい光こうfluorescenceNoun増ぞうincreaseNoun白はくwhite; striped mullet fry (Mugil cephalus); (spoken) line (in a play, film, etc.); one's lines; white dragon tile; winning hand with a pung (or kong) of white dragon tilesNoun剤ざいmedicine; agent; (chemical) substance; drug; doseSuffix