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We found 42 dictionaries with English definitions that include the word opium:
Click on the first link on a line below to go directly to a page where "opium" is defined.

General (31 matching dictionaries)

1. opium: Merriam-Webster.com [home, info]
2. opium: Oxford Learner's Dictionaries [home, info]
3. opium: American Heritage Dictionary of the English Language [home, info]
4. opium: Collins English Dictionary [home, info]
5. opium: Vocabulary.com [home, info]
6. opium: Macmillan Dictionary [home, info]
7. Opium, opium: Wordnik [home, info]
8. opium: Cambridge Advanced Learner's Dictionary [home, info]
9. opium: Wiktionary [home, info]
10. opium: Webster's New World College Dictionary, 4th Ed. [home, info]
11. opium: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. opium: Infoplease Dictionary [home, info]
13. opium: Dictionary.com [home, info]
14. opium: Online Etymology Dictionary [home, info]
15. opium: UltraLingua English Dictionary [home, info]
16. opium: Cambridge Dictionary of American English [home, info]
17. Opium (Jay-Jay Johanson album), Opium (KMFDM album), Opium (Matt Berry album), Opium (Moonspell song), Opium (Serebro song), Opium (disambiguation), Opium (perfume), Opium: Wikipedia, the Free Encyclopedia [home, info]
18. Opium: Online Plain Text English Dictionary [home, info]
19. opium: Webster's Revised Unabridged, 1913 Edition [home, info]
20. opium: Rhymezone [home, info]
21. Opium (nt), opium, opium (de), opium (m): AllWords.com Multi-Lingual Dictionary [home, info]
22. opium: Webster's 1828 Dictionary [home, info]
23. Opium: Encarta® Online Encyclopedia, North American Edition [home, info]
24. Opium: 1911 edition of the Encyclopedia Britannica [home, info]
25. opium: Free Dictionary [home, info]
26. opium: Mnemonic Dictionary [home, info]
27. opium: WordNet 1.7 Vocabulary Helper [home, info]
28. opium: LookWAYup Translating Dictionary/Thesaurus [home, info]
29. opium: Dictionary/thesaurus [home, info]

Art (1 matching dictionary)

30. Opium: Natural Magick [home, info]

Computing (2 matching dictionaries)

31. opium: Encyclopedia [home, info]
32. Opium: The Difference [home, info]

Medicine (6 matching dictionaries)

33. Opium: MedTerms.com Medical Dictionary [home, info]
34. Opium: Medical Dictionary [home, info]
35. opium: online medical dictionary [home, info]
36. OPIUM: Probert Encyclopaedia of Medicine [home, info]
37. opium: Medical dictionary [home, info]
38. Opium: Drug Medical Dictionary [home, info]

Miscellaneous (2 matching dictionaries)

39. Opium: Brilliant Dream Dictionary [home, info]
40. OPIUM: Acronym Finder [home, info]

(Note: See opiums for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (opium) ▸ noun:  an addictive narcotic extracted from seed capsules of the opium poppy ▸ Also see opiums ▸ Word origin ▸ Words similar to opium ▸ Usage examples for opium ▸ Idioms related to opium (New!) ▸ Popular adjectives describing opium ▸ Words that often appear near opium ▸ Rhymes of opium ▸ Invented words related to opium