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- Dictionarypush-button/ˈpʊʃˌbʌtn/
noun
- 1. a button that is pushed to operate an electrical device: "a push-button telephone"
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noun
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A push-button (also spelled pushbutton) or simply button is a simple switch mechanism to control some aspect of a machine or a process. Buttons are typically made out of hard material, usually plastic or metal. The surface is usually flat or shaped to accommodate the human finger or hand, so as to be easily depressed or pushed. Buttons are most often biased switches, although many un-biased button... Wikipedia