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verbmove by degrees in one direction only
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nounmechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one directiontype of:
Definition that contains ratchet
- dog a hinged catch that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward
- click a hinged catch that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward
- detent a hinged catch that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward
- 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
- pawl a hinged catch that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward
- 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