flywheel

[flahy-hweel, -weel]
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noun Machinery.
  1. a heavy disk or wheel rotating on a shaft so that its momentum gives almost uniform rotational speed to the shaft and to all connected machinery.

Origin of flywheel

First recorded in 1775–85; fly1 + wheel
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for flywheel

balance, flywheel

Examples from the Web for flywheel

Historical Examples of flywheel


British Dictionary definitions for flywheel

flywheel

noun
  1. a heavy wheel that stores kinetic energy and smooths the operation of a reciprocating engine by maintaining a constant speed of rotation over the whole cycle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for flywheel
n.

1784, from fly (n.) "speed-regulating device" (from fly (v.1)) + wheel (n.).

Online Etymology Dictionary, © 2010 Douglas Harper