rack and pinion

Other forms: rack and pinions

Definitions of rack and pinion
  1. noun
    a wheel gear (the pinion) meshes with a toothed rack; converts rotary to reciprocating motion (and vice versa)
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    type of:
    cogwheel, gear, gear wheel, geared wheel
    a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
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