We found 6 dictionaries that define the word reciprocating engines:

General (5 matching dictionaries)

1. reciprocating engines: Collins English Dictionary
2. reciprocating engines: Vocabulary.com
3. reciprocating engines: Wiktionary
4. Reciprocating engines: Wikipedia, the Free Encyclopedia
5. Reciprocating engines: TheFreeDictionary.com

Computing (1 matching dictionary)

6. Reciprocating engines: Encyclopedia

(Note: See reciprocating_engine as well.)

Definitions from Wiktionary (reciprocating engine) ▸ noun:  Synonym of piston engine. ▸ Also see reciprocating_engine ▸ Words similar to reciprocating engines ▸ Usage examples for reciprocating engines ▸ Idioms related to reciprocating engines ▸ Wikipedia articles (New!) ▸ Words that often appear near reciprocating engines ▸ Rhymes of reciprocating engines ▸ Invented words related to reciprocating engines