0-8-0 noun1 •Under the Whyte notation system, a steam locomotive, with four axles connecting eight powered driving wheels, and no leading wheels or trailing wheels.The last new steam locomotive for a Class 1 U.S. railroad was an 0-8-0 built in December 1953 by the Norfolk & Western's home shop in Roanoke, Virginia. — 2006 forms0-8-0s