Definition, Meaning & Synonyms
two-stroke
Adjective
/ˈtuː stroʊk/

Definition
A type of internal combustion engine that completes a power cycle with two strokes of the piston during one crankshaft revolution.

Examples
- A two-stroke engine is often lighter and has a higher power-to-weight ratio than four-stroke engines.
- Many small motorcycles and chainsaws use two-stroke engines for their simplicity and efficiency.

Meaning
The term ‘two-stroke’ refers to the mechanism of the engine, which minimizes the number of pistons’ movements needed to complete a power cycle, making it lighter and simpler than a four-stroke engine.

Synonyms
- Single-cycle engine
- Lightweight engine