Search Result for "flywheel": 
Wordnet 3.0

NOUN (1)

1. regulator consisting of a heavy wheel that stores kinetic energy and smooths the operation of a reciprocating engine;


The Collaborative International Dictionary of English v.0.48:

flywheel \flywheel\ n. A heavy wheel or disk which stores kinetic energy by rotating on a shaft, and by its momentum smoothes the operation of a reciprocating engine by reducing fluctuations of speed. It is used in certain types of machinery, such as automobiles. [WordNet 1.5 +PJC] Note: Flywheels rotating at high speed have also been proposed as a means to store kinetic energy for use as a low-polluting source of energy in vehicles. [PJC]
WordNet (r) 3.0 (2006):

flywheel n 1: regulator consisting of a heavy wheel that stores kinetic energy and smooths the operation of a reciprocating engine