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We found 32 dictionaries with English definitions that include the word ricin:
Click on the first link on a line below to go directly to a page where "ricin" is defined.

General dictionaries General (23 matching dictionaries)
  1. ricin: Oxford Dictionaries [home, info]
  2. ricin: American Heritage Dictionary of the English Language [home, info]
  3. ricin: Collins English Dictionary [home, info]
  4. ricin: Vocabulary.com [home, info]
  5. ricin: Macmillan Dictionary [home, info]
  6. ricin: Merriam-Webster's Online Dictionary, 11th Edition [home, info]
  7. Ricin, ricin: Wordnik [home, info]
  8. ricin: Cambridge Advanced Learner's Dictionary [home, info]
  9. Ricin: Wiktionary [home, info]
  10. ricin: Webster's New World College Dictionary, 4th Ed. [home, info]
  11. ricin: Infoplease Dictionary [home, info]
  12. ricin: Dictionary.com [home, info]
  13. ricin: Online Etymology Dictionary [home, info]
  14. ricin: UltraLingua English Dictionary [home, info]
  15. Ricin: Wikipedia, the Free Encyclopedia [home, info]
  16. ricin: Rhymezone [home, info]
  17. ricin: Free Dictionary [home, info]
  18. ricin: Mnemonic Dictionary [home, info]
  19. ricin: WordNet 1.7 Vocabulary Helper [home, info]
  20. ricin: LookWAYup Translating Dictionary/Thesaurus [home, info]
  21. ricin: Dictionary/thesaurus [home, info]

Computing dictionaries Computing (1 matching dictionary)
  1. ricin: Encyclopedia [home, info]

Medicine dictionaries Medicine (5 matching dictionaries)
  1. Ricin: MedTerms.com Medical Dictionary [home, info]
  2. Ricin: Medical Dictionary [home, info]
  3. ricin: online medical dictionary [home, info]
  4. ricin: Medical dictionary [home, info]
  5. Ricin: Drug Medical Dictionary [home, info]

Miscellaneous dictionaries Miscellaneous (1 matching dictionary)
  1. ricin: Glossary of Terrorism Terms [home, info]

Science dictionaries Science (1 matching dictionary)
  1. ricin-: Glossary of Roots of Botanical Names [home, info]

Slang dictionaries Slang (1 matching dictionary)
  1. Ricin: Urban Dictionary [home, info]

Quick definitions from Macmillan (
American English Definition British English Definition

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Quick definitions from WordNet (ricin)

noun:  a toxic protein extracted from castor beans; used as a chemical reagent; can be used as a bioweapon ("One milligram of ricin can kill an adult")

Word origin

Phrases that include ricin:   ricin a chain

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