2-12-4

noun

Under the Whyte notation system, a steam locomotive that has two leading wheels, six pairs of coupled driving wheels, and four trailing wheels.

Meanings

noun2-12-4 (plural 2-12-4s)

plural 2-12-4s

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

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

MLA

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

Chicago

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

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