2-12 Definition

noun
Under the Whyte notation system, a steam locomotive that has a single-axle leading truck followed by six powered driving axles, and no trailing wheels.
Wiktionary
Under the Whyte notation system, a steam locomotive that has two leading wheels, six pairs of coupled driving wheels, and two trailing wheels.
Wiktionary
Under the Whyte notation system, a steam locomotive that has two leading wheels, six pairs of coupled driving wheels, and four trailing wheels.
Wiktionary
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Other Word Forms of 2-12

Noun

Singular:
2-12
Plural:
2-12-0s, 2-12-2s, 2-12-4s

Words Near 2-12 in the Dictionary