square engine

noun

A U engine in which two parallel-twin engines are coupled together.

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Meanings

nounsquare engine (plural square engines)

plural square engines

  1. A U engine in which two parallel-twin engines are coupled together.
  2. An engine with a stroke ratio of 1 (+/- 5%).
Cite this entry
APA

square engine. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/square%20engine

MLA

“square engine.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/square%20engine. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “square engine,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/square%20engine.

Source: square engine on Wiktionary, CC BY-SA 4.0.