push-button

1. not comparableWhich can be initiated or activated at the push of a button.

   push-button warfare

   2 more examples

   a push-button automatic [transmission]

   The push-button, entrance-exit signalling console incorporated in the operating floor of the yard control tower governs entry to and egress from the yard, [...]

   1963 September, “The new Tyne and Healey Mills yards of the North Eastern”, in Modern Railways, page 171

plural push-buttons

1. An electrical switch activated by pressing a button.

   The cab equipment of the automatic control system is illustrated. It consists of a rotary switch graduated from 0 to 120 km.p.h. at 5 km.p.h. intervals, and four push-buttons.

   1964 May, “Automation in the cab—latest SNCF developments”, in Modern Railways, page 335

   1 more example

   The communicating doors of adjoining vehicles are opened simultaneously by pressing a large push-button located a suitable height for a man loaded with mailbags to contact it with his shoulder; after a time-lag of seven seconds the doors close automatically.

   1959 December, “New TPOs for the Western Region”, in Trains Illustrated, page 581