four-stroke

American  

[fawr-strohk, fohr-] / ˈfɔrˌstroʊk, ˈfoʊr- /

adjective

Machinery.

1. four-cycle.

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four-stroke British  

adjective

1. US and Canadian name: four-cycle.  relating to or designating an internal-combustion engine in which the piston makes four strokes for every explosion Compare two-stroke

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Etymology

Origin of four-stroke

First recorded in 1895–1900

Example Sentences

The MCA said the vessel was the first of its kind, powered by a four-stroke engine, two of which are capable of being fuelled by ammonia and diesel.

From BBC • Mar. 2, 2025

MIDLAND, Mich. — Jennifer Kupcho and Lizette Salas shot a 6-under 64 in alternate-shot play Friday to take a four-stroke lead in the Dow Great Lakes Bay Invitational.

From Washington Post • Jul. 15, 2022

She stumbled a bit with bogeys on the fifth and seventh holes, but she was still able to make the turn at even-par 35 and with a four-stroke cushion when Harigae also bogeyed the seventh.

From New York Times • Jun. 5, 2022

Munoz finished his round before two major winners from Dallas teed off in the afternoon in the same group, with a four-stroke lead over Mito Pereira and Peter Malnati among the earlier finishers.

From Seattle Times • May 12, 2022

Brand-new four-stroke outboard runs so quiet, all you can hear is the slap of water on the hull.

From "The Young Man and the Sea" by Rodman Philbrick