Meaning & use
Piston
Last updated
A cylindrical component that moves back and forth within a cylinder, used to convert pressure into mechanical motion or vice versa.
See it in a sentence
Each piston in the engine fires in sequence to keep the crankshaft turning smoothly.
A worn piston seal was letting oil leak into the combustion chamber.
A note on using this word
Pistons are central to how internal combustion engines, air compressors, and even syringes work, converting the pressure of expanding gas or liquid into linear motion.
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