bleach
noun
°A chemical, such as sodium hypochlorite or hydrogen peroxide, or a preparation of such a chemical, used for disinfecting or whitening.
°A variety of bleach.
verb
°To treat with bleach, especially so as to whiten (fabric, paper, etc) or lighten (hair).
°For corals to lose color due to stress-induced expulsion of symbiotic unicellular algae.
synonyms: blanch