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Definitions from the Web

Battery

Noun:

1. A device used to store and provide electrical energy in the form of chemical energy. It typically consists of one or more electrochemical cells.

Example sentence: My TV remote stopped working because the battery ran out.

2. A unit of artillery in the form of several cannons or mortars.

Example sentence: The soldiers bombarded the enemy with a battery of heavy artillery.

Adjective:

1. Pertaining to or controlled by a battery.

Example sentence: She plugged in the battery-operated fan to cool down the room.