4-12-2

noun

Under the Whyte notation system, a steam locomotive that has four coupled leading wheels, twelve coupled driving wheels, and one pair of trailing wheels.

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Meanings

noun4-12-2 (plural 4-12-2s)

plural 4-12-2s

  1. Under the Whyte notation system, a steam locomotive that has four coupled leading wheels, twelve coupled driving wheels, and one pair of trailing wheels.
Cite this entry
APA

4-12-2. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/4-12-2

MLA

“4-12-2.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/4-12-2. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “4-12-2,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/4-12-2.

Source: 4-12-2 on Wiktionary, CC BY-SA 4.0.