whitening

American  

[hwahyt-n-ing, wahyt-] / ˈʰwaɪt n ɪŋ, ˈwaɪt- /

noun

1. a preparation for making something white; whiting.

2. the act or process of making or turning white.

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Etymology

Origin of whitening

First recorded in 1595–1605; whiten + -ing ¹

Example Sentences

She huddled in the corner of our train compartment, the hand that gripped Father’s whitening at the knuckles each time the train lurched or swayed.

From Literature

At the import expo, it showcased a new whitening toothpaste for the Chinese market, developed at Crest’s Beijing research institute.

From The Wall Street Journal

With shelves full of whitening, charcoal, and enamel-boosting pastes, it's easy to assume the pricier options will give you a healthier smile.

From BBC

Kellie Howson, 54, who lost four teeth after she paid £65 for a whitening treatment at a beauty salon in Lancaster, urged the public to be aware of the dangers.

From BBC

In food, calcium phosphate is used as a whitening agent.

From Los Angeles Times