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We found 66 dictionaries with English definitions that include the word catalyst:
Click on the first link on a line below to go directly to a page where "catalyst" is defined.

General (28 matching dictionaries)

1. catalyst: Merriam-Webster.com [home, info]
2. catalyst: Oxford Dictionaries [home, info]
3. catalyst: American Heritage Dictionary of the English Language [home, info]
4. catalyst: Collins English Dictionary [home, info]
5. catalyst: Vocabulary.com [home, info]
6. catalyst: Macmillan Dictionary [home, info]
7. Catalyst, catalyst: Wordnik [home, info]
8. catalyst: Cambridge Advanced Learner's Dictionary [home, info]
9. catalyst: Wiktionary [home, info]
10. catalyst: Webster's New World College Dictionary, 4th Ed. [home, info]
11. catalyst: V2 Vocabulary Building Dictionary [home, info]
12. catalyst: The Wordsmyth English Dictionary-Thesaurus [home, info]
13. catalyst: Infoplease Dictionary [home, info]
14. catalyst: Dictionary.com [home, info]
15. catalyst: Online Etymology Dictionary [home, info]
16. catalyst: UltraLingua English Dictionary [home, info]
17. catalyst: Cambridge Dictionary of American English [home, info]
18. Catalyst (New Found Glory album), Catalyst (Prototype album), Catalyst (TV program), Catalyst (band), Catalyst (building), Catalyst (disambiguation), Catalyst (journal), Catalyst (magazine), Catalyst (nonprofit organization), Catalyst (novel), Catalyst (role-playing game supplements), Catalyst (science park), Catalyst (software), Catalyst (think tank), Catalyst, The Catalyst (newspaper), The Catalyst: Wikipedia, the Free Encyclopedia [home, info]
19. catalyst: Rhymezone [home, info]
20. catalyst: AllWords.com Multi-Lingual Dictionary [home, info]
21. catalyst: Free Dictionary [home, info]
22. catalyst: Hutchinson Dictionaries [home, info]
23. catalyst: Mnemonic Dictionary [home, info]
24. catalyst: WordNet 1.7 Vocabulary Helper [home, info]
25. catalyst: LookWAYup Translating Dictionary/Thesaurus [home, info]
26. catalyst: Dictionary/thesaurus [home, info]

Art (1 matching dictionary)

27. catalyst: ArtLex Lexicon of Visual Art Terminology [home, info]

Business (4 matching dictionaries)

28. Catalyst: Construction Term Glossary [home, info]
29. Catalyst: Investopedia [home, info]
30. catalyst: Legal dictionary [home, info]
31. catalyst: BusinessDictionary.com [home, info]

Computing (2 matching dictionaries)

32. Catalyst: Cybernetics and Systems [home, info]
33. catalyst: Encyclopedia [home, info]

Medicine (7 matching dictionaries)

34. Catalyst: MedTerms.com Medical Dictionary [home, info]
35. catalyst: online medical dictionary [home, info]
36. Catalyst: Hepatitis C Information Central [home, info]
37. catalyst: Glossary of HIV/AIDS Related Terms [home, info]
38. catalyst: Medical dictionary [home, info]
39. catalyst: Vitamin Glossary [home, info]
40. Catalyst: Drug Medical Dictionary [home, info]

Science (7 matching dictionaries)

41. catalyst: Electrochemistry Dictionary [home, info]
42. Catalyst: Chemistry Dictionary [home, info]
43. Catalyst: Biology dictionary [home, info]
44. Catalyst: Eric Weisstein's World of Chemistry [home, info]
45. catalyst: General Chemistry Online [home, info]
46. catalyst: UNCChem Glossary [home, info]
47. Catalyst: AGRICULTURAL AND ENVIRONMENTAL BIOTECHNOLOGY [home, info]

Slang (1 matching dictionary)

48. catalyst: Urban Dictionary [home, info]

Tech (16 matching dictionaries)

49. catalyst: Book Binding [home, info]
50. Catalyst: Glossary of Air Pollution Terms [home, info]
51. Catalyst: AUTOMOTIVE TERMS [home, info]
52. Catalyst: Dairy Glossary [home, info]
53. Catalyst: Glossary of Terms on Engines and Emissions [home, info]
54. CATALYST: Glossary of Composite Terms [home, info]
55. Catalyst: Construction deterioration & building durability glossary [home, info]
56. CATALYST: Glossary of Common Hearth and Heating Terms [home, info]
57. Catalyst: Explosives [home, info]
58. Catalyst: K & A glossary [home, info]
59. Catalyst: National Glass Association Glossary [home, info]
60. CATALYST: Lake and Water Word Glossary [home, info]
61. Catalyst: PUMP AND SEAL TERMS [home, info]
62. Catalyst: Fiberglass Glossary [home, info]
63. Catalyst: Oil Analysis [home, info]
64. CATALYST: Industry Terms for Fiberglass [home, info]

(Note: See catalysts for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (catalyst) ▸ noun:  something that causes an important event to happen ("The invasion acted as a catalyst to unite the country") ▸ noun:  (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected ▸ Also see catalysts ▸ Word origin ▸ Words similar to catalyst ▸ Usage examples for catalyst ▸ Popular adjectives describing catalyst ▸ Words that often appear near catalyst ▸ Rhymes of catalyst ▸ Invented words related to catalyst