prechamber

Etymology

From pre- + chamber.

prechamber means The area around the spark plug in a cylinder of an internal-combustion engine (or in the cylinder head of a diesel engine) where combustion begins Lexicurio rates it Rare gem — a strength score of 83 out of 100.

noun

The area around the spark plug in a cylinder of an internal-combustion engine (or in the cylinder head of a diesel engine) where combustion begins