'Bleaching powder' definitions:

Definition of 'bleaching powder'

From: WordNet
noun
A white powder comprised of calcium hydroxide and chloride and hypochlorite and used to bleach and/or disinfect [syn: bleaching powder, chlorinated lime, chloride of lime]

Definition of 'Bleaching powder'

From: GCIDE
  • Bleaching \Bleach"ing\, n. The act or process of whitening, by removing color or stains; esp. the process of whitening fabrics by chemical agents. --Ure. [1913 Webster]
  • Bleaching powder, a powder for bleaching, consisting of chloride of lime, or some other chemical or chemicals. [1913 Webster]