English

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Four-stroke engine.

Adjective

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four-stroke (not comparable)

  1. Of or relating to a design of internal combustion engine in which the pistons perform four strokes per engine cycle: intake, compression, power, exhaust.
    This motorbike has a four-stroke engine.

Derived terms

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Noun

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four-stroke (plural four-strokes)

  1. A four-stroke engine.
  2. A vehicle or machine powered by a four-stroke engine.