exhaustible fuels

noun
UK /ɪɡˈzɔːstəbl fjuːəlz/
US /ɪɡˈzɔːstəbl fjuːəlz/

Fuels that will run out because there is only a limited amount of them.

Coal and oil are exhaustible fuels that we cannot use forever.


OTHER MEANINGS

2. Energy sources that cannot be replaced quickly after they are used up.

Exhaustible fuels like petroleum take millions of years to form.

3. Resources used for power that are used up faster than nature can make them.

Burning exhaustible fuels releases pollution into the air.

4. Fuels whose supply is limited and will eventually be gone.

Scientists encourage using solar power instead of exhaustible fuels.