Definition
A light, refined petroleum distillate fuel with a higher flash point and lower volatility than gasoline, used as the base for most turbine engine fuels (such as Jet A and Jet A-1) and as a heating and lighting fuel.
Plain English
A type of fuel made from oil that is heavier and less easy to ignite than gasoline. It is the main ingredient in jet fuel.
Context Anchor
Seen in aircraft fuel, turbine engine, and aviation maintenance discussions.
Derivation
From the Greek 'keros' meaning 'wax,' coined in the 1850s when this fuel was first refined from petroleum. The name reflects its waxy, oily character compared to lighter fuels like gasoline.
Why Pilots Care
Turbine engines are designed to run on kerosene-based fuels. Mixing or substituting fuels incorrectly — for example, putting Jet A in a piston engine or avgas in a turbine — can cause serious engine damage or failure.
Grounding Statement
Kerosene is the heavier, oilier fuel family behind most jet fuel.
Intuition Check
Do not think of kerosene as just another name for gasoline. In aviation, kerosene refers to the heavier fuel family used mainly for turbine-engine jet fuel.
Example Sentence 1
Jet A is a kerosene-based fuel used in most commercial turbine aircraft.
Example Sentence 2
Kerosene’s higher flash point reduces fire risk during fueling compared with gasoline.