noting or pertaining to a device, operated by an electric current, for automatically opening or closing a circuit once it has been closed or opened by a mechanical springlike device, as in a doorbell.
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How to use make-and-break in a sentence
If they be connected in series, one or the other should have its make-and-break contact closed.The Boy Mechanic, Book 2 | Various
The up-and-down movement serves as a make-and-break for the circuit.Practical Cinematography and Its Applications | Frederick Arthur Ambrose Talbot
The same method of inspection is adopted with the make-and-break apparatus of an electric magneto.Gas-Engines and Producer-Gas Plants | R. E. Mathot
Ignition was make-and-break and the inlet valves were mechanically actuated.The Wright Brothers' Engines and Their Design | Leonard S. Hobbs.
make-and-break points, on the other hand, were unaffected by excess oil in the cylinder.The Wright Brothers' Engines and Their Design | Leonard S. Hobbs.