piston
/ΛpΙͺstΙn/
B2 Β· Upper Int.β
β
βββ
Simple Meaning
a part inside an engine that moves up and down to make the engine work.
When to Use
βοΈTechnicalπΌWorkplace English
Upper Intermediate β fluent in familiar topics
Examples in Conversation
βThe mechanic said the piston in my car is damaged.β
βA piston moves very fast inside a car engine.β
Learning Path
βΆFull Definition
A solid disk or cylinder that fits inside a hollow cylinder, and moves under pressure (as in an engine) or displaces fluid (as in a pump)
Related Words
Synonyms:
cylinderplunger
Word Family:
pistonspistonless