- (physics) The study and use of electrical devices that operate by controlling the flow of electrons or other electrically charged particles.
"Electronics is a popular subject."
- Electronic circuitry.
"The electronics are completely updated."
- (in the plural) A device or devices which require the flow of electrons through conductors and semiconductors in order to perform their function; devices that operate on electrical power (battery or outlet);
"Look at all the electronics in this room!"
"The electronics is the difference between a modern and an old-fashion thermostat."