differential gear

/ˌˈdɪfəˌrɛntʃəl gɪər/
IPA guide

Other forms: differential gears

Definitions of differential gear
  1. noun
    a bevel gear that permits rotation of two shafts at different speeds; used on the rear axle of automobiles to allow wheels to rotate at different speeds on curves
    synonyms: differential
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    type of:
    bevel gear, pinion and crown wheel, pinion and ring gear
    gears that mesh at an angle
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