English Explanatory Dictionary

rack and pinion

English dictionary entry

Meanings

noun
  1. A pair of gears, consisting of a circular pinion that engages with the teeth of a flat bar, that converts rotational into linear motion; used in the steering mechanism of cars, and in some railways.
  2. A type of steering that uses such a gear arrangement: Ellipsis of rack and pinion steering.

Word forms

rack and pinion rack and pinions racks and pinions

Derived words

rack-and-pinion railway
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