self-powered

adjective

UK /ˌselfˈpaʊəd/

US /ˌselfˈpaʊərd/

A self-powered thing makes its own power to work, without needing a battery or a plug.

The little flashlight is self-powered, so it works when you shake it.

SYNONYMS

self-sufficient independent self-sustaining autonomous self-reliant

RELATED WORDS

power energy battery generator electricity

OTHER MEANINGS

2. Able to run using energy it produces itself, such as from motion or sunlight.

The self-powered watch keeps time by using the movement of your arm.

3. Acting or operating without outside help or control.

The self-powered robot can find its way around the room on its own.

4. Driven by its own internal source rather than an external supply.

The self-powered bike light glows as the wheels spin.