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请输入英文单字，中文词皆可：

whitening    音标拼音: [w'ɑɪtɪnɪŋ] [w'ɑɪtnɪŋ] [hw'ɑɪtɪnɪŋ] [hw'ɑɪtnɪŋ]
n. 弄白,变白,白粉

弄白,变白,白粉

whitening
n 1: changing to a lighter color [synonym: {whitening},
{lightening}]

Whitening \Whit"en*ing\, n.
1. The act or process of making or becoming white.
[1913 Webster]

2. That which is used to render white; whiting. [R.]
[1913 Webster]

{Whitening stone}, a sharpening and polishing stone used by
cutlers; also, a finishing grindstone of fine texture.
[1913 Webster]


Whiten \Whit"en\, v. i. [imp. & p. p. {Whitened}; p. pr. & vb.
n. {Whitening}.] [OE. whitenen; cf. Icel. hv[imac]tna.]
To grow white; to turn or become white or whiter; as, the
hair whitens with age; the sea whitens with foam; the trees
in spring whiten with blossoms.
[1913 Webster]


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