6-4-4-6

noun

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

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Meanings

noun6-4-4-6 (plural 6-4-4-6s)

plural 6-4-4-6s

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

6-4-4-6. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/6-4-4-6

MLA

“6-4-4-6.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/6-4-4-6. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “6-4-4-6,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/6-4-4-6.

Source: 6-4-4-6 on Wiktionary, CC BY-SA 4.0.