4-6-4
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English
[edit]![](http://upload.wikimedia.org/wikipedia/commons/thumb/a/af/LBSCR-Lclass.jpg/220px-LBSCR-Lclass.jpg)
Noun
[edit]- Under the Whyte notation system, a steam locomotive that has four leading wheels arranged in a leading truck, six coupled driving wheels and four trailing wheels in a trailing truck.