We found 19 dictionaries that define the word octane rating:

General (13 matching dictionaries)

1. octane rating: Merriam-Webster
2. octane rating: Oxford Learner's Dictionaries
3. octane rating: Collins English Dictionary
4. octane rating: Vocabulary.com
5. octane rating: Cambridge Advanced Learner's Dictionary
6. octane rating: The Wordsmyth English Dictionary-Thesaurus
7. octane rating: Dictionary.com
8. Octane Rating, Octane rating: Wikipedia, the Free Encyclopedia
9. octane rating: Rhymezone
10. octane rating: FreeDictionary.org
11. octane rating: Mnemonic Dictionary
12. octane rating: TheFreeDictionary.com
13. octane rating: Wiktionary

Business (2 matching dictionaries)

14. Octane rating: Energy Dictionary
15. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

16. octane rating: Encyclopedia

Tech (3 matching dictionaries)

17. AUTOMOTIVE TERMS (No longer online)
18. Energy Terms (No longer online)
19. OCTANE RATING: Power Engineering

(Note: See octane_ratings as well.)

Definitions from Wiktionary (octane rating) ▸ noun:  An octane number. Similar: octane number, research octane number, gasoline, cetane number, compression ratio, engine displacement, Gasoline gallon equivalent, fuel gauge, Boost gauge, fuel injection, more... ▸ Words similar to octane rating ▸ Usage examples for octane rating ▸ Idioms related to octane rating ▸ Wikipedia articles (New!) ▸ Words that often appear near octane rating ▸ Rhymes of octane rating ▸ Invented words related to octane rating