power tool
/ˈpaʊər ˈtuːl/ · pow·er · tool
noun
- A device, such as a drill or saw, that is powered by electricity or a motor, used for performing tasks that require more force or speed than manual tools can provide. She used a power tool to cut through the thick wooden beam.
- A device that is powered by a battery or other portable energy source, used for tasks such as grinding or sanding. He used a power tool to smooth out the surface of the metal plate.
Did you know? The first power tool, the electric drill, was patented in 1889 by an American inventor named William O'Reilly.