We found 22 dictionaries that define the word crude oil:

General (14 matching dictionaries)

1. crude oil: Merriam-Webster
2. crude oil: American Heritage Dictionary of the English Language
3. crude oil: Collins English Dictionary
4. crude oil: Vocabulary.com
5. Crude-oil, crude-oil: Wordnik
6. crude oil: Cambridge Advanced Learner's Dictionary
7. crude-oil, crude oil: Wiktionary
8. crude oil: Infoplease Dictionary
9. crude oil: Dictionary.com
10. Crude Oil (film), Crude Oil, Crude oil: Wikipedia, the Free Encyclopedia
11. crude oil: Rhymezone
12. crude oil: FreeDictionary.org
13. crude oil: Mnemonic Dictionary
14. crude oil: TheFreeDictionary.com

Business (2 matching dictionaries)

15. Crude oil: Moneyterms
16. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

17. crude oil: Encyclopedia

Medicine (1 matching dictionary)

18. crude oil: Medical dictionary

Slang (1 matching dictionary)

19. Crude Oil: Urban Dictionary

Tech (3 matching dictionaries)

20. AUTOMOTIVE TERMS (No longer online)
21. Schlumberger Oilfield Glossary (No longer online)
22. Oil and Gas Well Drilling and Servicing eTool (No longer online)

(Note: See crude_oils as well.)

Definitions from Wiktionary (crude oil) ▸ noun:  Unrefined oil; as it is found underground, consisting mainly of hydrocarbons. Similar: coal oil, fossil oil, rock oil, petroleum, crude, raw water, virgin field, primary energy, whole food, unleaded, more... Types: bitumen, petroleum, kerosene, fuel oil, diesel oil, gasoline, more... Phrases: Heavy crude oil, Light crude oil, Sweet crude oil, crude oil poisoning, crude petroleum oil, more... Adjectives: crude, bituminous, petrolic, coky, wax, petrochemical, charcoal, petrogenic, cracking, coaly, colly ▸ Words similar to crude oil ▸ Usage examples for crude oil ▸ Idioms related to crude oil ▸ Wikipedia articles (New!) ▸ Words that often appear near crude oil ▸ Rhymes of crude oil ▸ Invented words related to crude oil