ratchet

Noun
  1. Mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction (synset 104062292)
    is a type of: mechanical device - mechanism consisting of a device that works on mechanical principles
    has:
    • click, detent, dog, pawl - a hinged catch that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward
    • ratchet wheel - toothed wheel held in place by a pawl or detent and turned by a lever
    is a part of: ratchet screwdriver, spiral ratchet screwdriver - a screwdriver with a ratchet (so the blade turns in only one direction) and a spiral in the handle (so the blade rotates) with downward pressure on the handle
    same as: rachet, ratch
Verb
  1. Move by degrees in one direction only (synset 202076601)
    "a ratcheting lopping tool"
    is a type of: advance, go on, march on, move on, pass on, progress - move forward, also in the metaphorical sense
    same as: rachet up, ratchet down

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