an electronic meter, usually for measuring electricity or gas consumption, which is able to send readings back to the supply company at predetermined intervals.

A television with integrated Internet features.

plural of smart grid

plural of smart arse

A computerized electrical grid which gathers and analyzes information from users to determine the most efficient and reliable operation of electricity distribution

(informal) having the irritating qualities of a smart arse, with a know-it-all attitude.

A mobile device worn on the wrist, often with a display that can be used to control a smartphone or to keep track of information such as fitness levels.

plural of smart-arse

(nautical, now historical) A certificate given to wounded seamen, entitling them to smart money. / An e-ticket.

A kind of guided missile. / (military aviation) A guided air-dropped bomb. / (video games) A weapon that damages or kills all enemies within a large area.