We found 13 dictionaries that define the word motor oil:

General (9 matching dictionaries)

1. motor oil: Collins English Dictionary
2. motor oil: Vocabulary.com
3. motor oil: Wiktionary
4. motor oil: Dictionary.com
5. Motor Oil, Motor oil: Wikipedia, the Free Encyclopedia
6. motor oil: Rhymezone
7. motor oil: FreeDictionary.org
8. motor oil: Mnemonic Dictionary
9. motor oil: TheFreeDictionary.com

Computing (1 matching dictionary)

10. motor oil: Encyclopedia

Medicine (1 matching dictionary)

11. motor oil: Medical dictionary

Slang (1 matching dictionary)

12. motor oil: Urban Dictionary

Tech (1 matching dictionary)

13. AUTOMOTIVE TERMS (No longer online)

(Note: See motor_oils as well.)

Definitions from Wiktionary (motor oil) ▸ noun:  Oil for lubricating an internal-combustion engine. Similar: lubricating oil, petroil, gear oil, oil burner, engine, petrol engine, propellant, internal-combustion engine, oil change, internal combustion engine, more... Opposite: antifreeze, lubricant, coolant Phrases: motor lubricating oil, Motor Oil Hellas, motor oil brand, motor oil letters, more... Adjectives: wax, cracking, lube, crude, lubricating, lubed, scorified, colly, cindery, oiled, saponifiable ▸ Words similar to motor oil ▸ Usage examples for motor oil ▸ Idioms related to motor oil ▸ Wikipedia articles (New!) ▸ Words that often appear near motor oil ▸ Rhymes of motor oil ▸ Invented words related to motor oil