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

plural of 2-10-2

Under the Whyte notation system, a steam locomotive, with five axles connecting ten powered driving wheels, and no leading wheels or trailing wheels.

plural of 0-10-0

plural of 4-10-2

(organic chemistry) The common name for undecylenic acid.

Under the Whyte notation system, a steam locomotive that has four leading wheels on a leading truck followed by ten coupled driving wheels, and no trailing wheels.

Under the Whyte notation system, a steam locomotive that has a single-axle leading truck followed by five powered driving axles, and no trailing wheels.

Under the Whyte notation system, a steam locomotive that has two leading wheels arranged in a leading truck, ten coupled driving wheels and four trailing wheels in a trailing truck.

Under the Whyte notation system, a steam locomotive that has ten coupled driving wheels followed by two trailing wheels, with no leading wheels.