Piston

/'pistən/
Học thuật
Thân thiện
Definition
  1. Noun:
    • A mechanical device that moves with a plunging or thrusting motion: A piston is a solid cylinder or disk that fits snugly into a larger cylinder and moves under fluid pressure (as in an engine) or against fluid pressure (as in a pump). It is a fundamental component in many mechanical systems for converting energy.
    • Walter Piston (1894-1976): A United States neoclassical composer, known for his symphonies, ballet music, and influential textbooks on harmony and counterpoint.
Usage Examples

  • Noun (Mechanical Device):

    • The engine's power comes from the rapid up-and-down motion of the pistons.
    • A faulty piston can cause a loss of compression in the cylinder.
    • The pump uses a piston to force water through the pipe.

  • Noun (Person):

    • The orchestra performed a suite by Walter Piston.
    • Piston's textbook on harmony is still widely used in music schools.
Advanced Usage

  • "Piston ring": A split ring that fits into a groove on the outer diameter of a piston to seal the gap between the piston and the cylinder wall.

    • Worn piston rings can lead to excessive oil consumption.

  • "Piston engine": An internal combustion engine that uses one or more pistons to convert pressure into a rotating motion.

    • Most automobiles are powered by a reciprocating piston engine.
Variants and Related Words

  • Piston rod (n): The rod that connects a piston to a crankshaft or crosshead.

    • The piston rod transfers the linear motion of the piston.

  • Piston-driven (adj): Powered by or involving pistons.

    • It was a classic piston-driven aircraft.
Synonyms
  • Plunger: A device with a similar reciprocating motion, often used for clearing blockages or in pumps.
  • Ram: A hydraulic or pneumatic piston, especially one that delivers a strong force.
Related Phrases (Phrasal Verbs)

(Note: "Piston" is primarily a technical noun and is not commonly used to form phrasal verbs.)

Related Idioms

(Note: There are no common idioms based on the word "piston.")

Noun
  1. mechanical device that has a plunging or thrusting motion
  2. United States neoclassical composer (1894-1976)

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