whitener
Word family (noun) white whiteness whitener (adjective) white (verb) whiten
From Longman Dictionary of Contemporary Englishwhitenerwhit‧en‧er /ˈwaɪtnə $ -ər/ (also whitening /ˈwaɪtnɪŋ/) noun [countable, uncountable] CCa substance used to make something more whiteExamples from the Corpuswhitener• They can be purchased as liquid, frozen liquid, or spray-dried coffee whitener.