ratchet wheel


a wheel, with teeth on the edge, into which a pawl drops or catches, as to prevent reversal of motion or convert reciprocating motion into rotatory motion.

Nearby words

  1. ratcatcher,
  2. ratch,
  3. ratchet,
  4. ratchet effect,
  5. ratchet jack,
  6. rate,
  7. rate base,
  8. rate card,
  9. rate of exchange,
  10. rate of return

Origin of ratchet wheel

First recorded in 1770–80

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ratchet wheel