Whitening
Pronunciation : Whit"en*ing
Part of Speech : n.
Definition : 1. The act or process of making or becoming white.
2. That which is used to render white; whiting. [R.] Whitening stone, a sharpening and polishing stone used by cutlers; also, a finishing grindstone of fine texture.
Source : Webster's Unabridged Dictionary, 1913