We found 33 dictionaries that define the word castor oil:

General (22 matching dictionaries)

1. castor oil: Merriam-Webster
2. castor oil: Oxford Learner's Dictionaries
3. castor oil: American Heritage Dictionary of the English Language
4. castor oil: Collins English Dictionary
5. castor oil: Vocabulary.com
6. castor-oil, castor oil: Wordnik
7. castor oil: Cambridge Advanced Learner's Dictionary
8. castor-oil, castor oil: Wiktionary
9. castor oil: The Wordsmyth English Dictionary-Thesaurus
10. castor oil: Infoplease Dictionary
11. castor oil: Dictionary.com
12. Castor oil: Wikipedia, the Free Encyclopedia
13. Castor oil: Online Plain Text English Dictionary
14. castor oil: Rhymezone
15. Castor oil: AllWords.com Multi-Lingual Dictionary
16. castor-oil: Webster's 1828 Dictionary
17. castor oil: FreeDictionary.org
18. castor oil: Mnemonic Dictionary
19. castor oil: TheFreeDictionary.com
20. castor oil: Longman Dictionary of Contemporary English

Art (1 matching dictionary)

21. Castor Oil: Health & Beauty Glossary

Business (1 matching dictionary)

22. Construction Term Glossary (No longer online)

Computing (1 matching dictionary)

23. Castor-oil, castor oil: Encyclopedia

Medicine (6 matching dictionaries)

24. castor oil: Merriam-Webster Medical Dictionary
25. Dorland's Illustrated Medical Dictionary (No longer online)
26. Medical Dictionary (No longer online)
27. Castor oil: Merck Manuals
28. online medical dictionary (No longer online)
29. Castor-oil, castor oil: Medical dictionary

Tech (2 matching dictionaries)

30. Book Binding (No longer online)
31. Castor Oil: Beauty & Health Glossary

(Note: See castor_oils as well.)

Definitions from Wiktionary (castor oil) ▸ noun:  The pale yellow vegetable oil extracted from the castor bean; used as a laxative and an industrial lubricant. Similar: castor-oil, ricinine, ricin, gorli oil, colostrum, liquid paraffin, petrolatum, ointment, pinhoen oil, joint oil, more... Opposite: ricin oil, anti-castor oil, non-castor oil Types: mineral oil, more... Phrases: castor oil plant, false castor oil plant, castor oil plants, more... Adjectives: mint, extra virgin, amandine, banana, vanilla, olive, saffron, avocado, herbal, ginger, mustard ▸ Words similar to castor oil ▸ Usage examples for castor oil ▸ Idioms related to castor oil ▸ Wikipedia articles (New!) ▸ Words that often appear near castor oil ▸ Rhymes of castor oil ▸ Invented words related to castor oil