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1. (adj.) push-button
operated by or as if by push buttons:
push-button tuning.
2. push-button
utilizing devices that can be easily activated from a distant location:
push-button warfare.
Etymology: (1875–80, Amer.)
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| Definition of 'push-button' |
The Standard Electrical Dictionary |
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1. push-button
A switch for closing a circuit by means of pressure applied to a button. The button is provided with a spring, so that when pushed in and released it springs back. Thus the circuit is closed only as long as the button is pressed. The electric connection may be made by pressing together two flat springs, each connected to one of the wires, or by the stem of the button going between two springs, not in contact, forcing them a little apart to secure good contact, and thereby bridging over the space between them.
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Definitions of push-button 
