Plain English Meaning
The part of the engine that combines air and fuel in the right proportions, then sends that mixture to the cylinders to be burned.
Full Definition
An aircraft fuel metering system that mixes incoming air with fuel in the correct ratio before delivering the mixture to the engine cylinders for combustion. The carburetor draws fuel from the float chamber through a venturi, where the accelerated airflow creates low pressure that pulls fuel into the airstream and atomizes it.
Context Anchor
Seen in engine and induction system discussions, especially when learning how a piston aircraft engine receives air and fuel.