depletable fuels
nounUK /dɪˈpliːtəbl ˈfjuːəlz/
US /dɪˈpliːtəbl ˈfjuːəlz/
Fuels that can run out because there is only a limited amount of them.
Coal and oil are depletable fuels, so we should use them wisely.
RELATED WORDS
OTHER MEANINGS
2. Energy sources that cannot be replaced quickly after they are used up.
Gasoline comes from depletable fuels that took millions of years to form.
3. Materials burned for power whose supply shrinks as people keep using them.
The country is trying to rely less on depletable fuels and more on wind and solar power.
4. Natural substances like oil and coal that are used up faster than nature can make them.
Teachers explained that depletable fuels are why recycling and saving energy matter.