We found 6 dictionaries that define the word piston engines:

General (5 matching dictionaries)

1. piston engines: Merriam-Webster
2. piston engines: Collins English Dictionary
3. piston engines: Wiktionary
4. Piston engines: Wikipedia, the Free Encyclopedia
5. Piston engines: TheFreeDictionary.com

Computing (1 matching dictionary)

6. Piston engines: Encyclopedia

Phrases: Rolls-Royce aircraft piston engines, more... ▸ Words similar to piston engines ▸ Usage examples for piston engines ▸ Idioms related to piston engines ▸ Wikipedia articles (New!) ▸ Words that often appear near piston engines ▸ Rhymes of piston engines ▸ Invented words related to piston engines