a liquid petroleum product having a flash point above 37.8°C: used as a substitute for coal in industrial furnaces, domestic heaters, ships, and locomotives
WordReference Random House Unabridged Dictionary of American English © 2026
fu′el oil′,
- Energyan oil used for fuel, esp. one used as a substitute for coal, as crude petroleum.
Collins Concise English Dictionary © HarperCollins Publishers::
'fuel oil' also found in these entries (note: many are not synonyms or translations):
diesel engine
- exclusive
- exhaust
- fire
- juice
- oil
- oil burner
- oilman
- petroleum
- retort
- service station
- sweet
- truckstop