noun
1. a locomotive for switching rolling stock in a railroad yard
• Syn: ↑switch engine
• Hypernyms: ↑locomotive, ↑engine, ↑locomotive engine, ↑railway locomotive
2. (nautical) a small engine (as one used on board ships to operate a windlass)
• Syn: ↑auxiliary engine
• Topics: ↑ship
• Hypernyms: ↑engine
Useful english dictionary. 2012.