Definition
A light petroleum distillate fuel with a higher flash point and lower volatility than gasoline, used as the base for turbine engine fuels such as Jet A and Jet A-1.
Plain English
A type of fuel made from oil that is heavier and harder to ignite than gasoline. It is what jet engines burn.
Context Anchor
Seen in aircraft fuel, turbine-engine, and fuel-servicing discussions.
Derivation
From the Greek 'keros,' meaning wax. The name was coined in the 1850s because the fuel was distilled from a waxy form of petroleum. Knowing this hints at why kerosine is heavier and oilier than gasoline.
Why Pilots Care
Using the wrong fuel type can cause engine failure or fire; confirming kerosine prevents costly and dangerous mismatches.
Intuition Check
Do not read kerosine as just another word for gasoline. In aviation, it points to the heavier fuel-oil family used for turbine and jet fuels.
Example Sentence 1
The line crew confirmed the Citation was being fueled with kerosine-based Jet A before connecting the hose.
Example Sentence 2
The maintenance manual requires kerosine meeting Jet A specifications for this engine.