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ratchet wheel

From Wiktionary, the free dictionary

English

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ratchet wheel (1) with pawl (2)

Noun

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ratchet wheel (plural ratchet wheels)

  1. A toothed wheel either held in position or turned by an engaging detent or pawl.
    Synonyms: dog wheel, ratch
  2. The retaining wheel over the mainspring arbor of a timepiece.

Translations

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