We found 11 dictionaries that define the word valve-in-head engine:

General (9 matching dictionaries)

1. valve-in-head engine: Merriam-Webster
2. valve-in-head engine: American Heritage Dictionary of the English Language
3. valve-in-head engine, valve-in-head engine: Collins English Dictionary
4. valve-in-head engine: Vocabulary.com
5. valve-in-head engine: Dictionary.com
6. valve-in-head engine: Rhymezone
7. valve-in-head engine: FreeDictionary.org
8. valve-in-head engine: Mnemonic Dictionary
9. valve-in-head engine: TheFreeDictionary.com

Computing (1 matching dictionary)

10. valve-in-head engine: Encyclopedia

Tech (1 matching dictionary)

11. AUTOMOTIVE TERMS (No longer online)

(Note: See valve-in-head_engines as well.)

Definitions from WordNet (valve-in-head engine) ▸ noun:  internal-combustion engine having both inlet and exhaust valves located in the cylinder head Opposite: overhead cam engine, OHC engine, DOHC engine ▸ Words similar to valve-in-head engine ▸ Usage examples for valve-in-head engine ▸ Idioms related to valve-in-head engine ▸ Wikipedia articles (New!) ▸ Words that often appear near valve-in-head engine ▸ Rhymes of valve-in-head engine ▸ Invented words related to valve-in-head engine