From Longman Dictionary of Contemporary Englishpush-buttonˈpush-button adjective [only before noun]SWITCH ON OR OFFoperated by pressing a button with your finger
a push-button telephoneExamples from the Corpuspush-button• If you have a push-buttonphone, you can choose your reading by pressing any number from 1-78.• a push-button phone• the push-buttonpiloting of a ship• High railingsguarded the small courtyardgardens, the gates of which were usually protected by push-button security-code entrylocks.• An ordinarypush-buttonswitchtriggers the monostable whose output goes from Logic 0 to 1.• An ordinary push-button switch usually produces several pulses instead of one.• Fibre-optic communications, push-buttontelephones and microcomputers won't stop the country from literally collapsing around our ears.• When I was born, we had telephones-we even had push-button telephones.• For a start, it is the only tractor on the market with an electronicpush-buttonthrottle.• push-buttonwarfare
