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We found 50 dictionaries with English definitions that include the word ratio:
Click on the first link on a line below to go directly to a page where "ratio" is defined.

General (30 matching dictionaries)

1. ratio: Merriam-Webster.com [home, info]
2. ratio: Oxford Dictionaries [home, info]
3. ratio: American Heritage Dictionary of the English Language [home, info]
4. ratio: Collins English Dictionary [home, info]
5. ratio: Vocabulary.com [home, info]
6. ratio: Macmillan Dictionary [home, info]
7. Ratio, ratio: Wordnik [home, info]
8. ratio: Cambridge Advanced Learner's Dictionary [home, info]
9. ratio: Wiktionary [home, info]
10. ratio: Webster's New World College Dictionary, 4th Ed. [home, info]
11. ratio: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. ratio: Infoplease Dictionary [home, info]
13. ratio: Dictionary.com [home, info]
14. ratio: Online Etymology Dictionary [home, info]
15. ratio: UltraLingua English Dictionary [home, info]
16. ratio: Cambridge Dictionary of American English [home, info]
17. Ratio (disambiguation), Ratio: Wikipedia, the Free Encyclopedia [home, info]
18. Ratio: Online Plain Text English Dictionary [home, info]
19. ratio: Webster's Revised Unabridged, 1913 Edition [home, info]
20. ratio: Rhymezone [home, info]
21. ratio: AllWords.com Multi-Lingual Dictionary [home, info]
22. ratio: Webster's 1828 Dictionary [home, info]
23. ratio: Free Dictionary [home, info]
24. ratio: Mnemonic Dictionary [home, info]
25. ratio: WordNet 1.7 Vocabulary Helper [home, info]
26. ratio: LookWAYup Translating Dictionary/Thesaurus [home, info]
27. ratio: Dictionary/thesaurus [home, info]
28. ratio: Wikimedia Commons US English Pronunciations [home, info]

Art (3 matching dictionaries)

29. ratio: ArtLex Lexicon of Visual Art Terminology [home, info]
30. ratio: Literary Criticism [home, info]
31. ratio-: A Cross Reference of Latin and Greek Elements [home, info]

Business (4 matching dictionaries)

32. ratio: INVESTORWORDS [home, info]
33. ratio: Legal dictionary [home, info]
34. ratio: Financial dictionary [home, info]
35. ratio: BusinessDictionary.com [home, info]

Computing (1 matching dictionary)

36. ratio: Encyclopedia [home, info]

Medicine (3 matching dictionaries)

37. Ratio: MedFriendly Glossary [home, info]
38. ratio: online medical dictionary [home, info]
39. ratio: Medical dictionary [home, info]

Science (6 matching dictionaries)

40. Ratio: Misunderstood Physics Terms [home, info]
41. Ratio: Eric Weisstein's World of Mathematics [home, info]
42. ratio: MATH SPOKEN HERE! [home, info]
43. ratio: PlanetMath Encyclopedia [home, info]
44. Ratio: Physic and Astronomy Glossary [home, info]
45. ratio: UNCChem Glossary [home, info]

Slang (1 matching dictionary)

46. The Ratio, ratio: Urban Dictionary [home, info]

Tech (2 matching dictionaries)

47. Ratio: AUTOMOTIVE TERMS [home, info]
48. Ratio: Sweetwater Music [home, info]

(Note: See ratios for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (ratio) ▸ noun:  the relative magnitudes of two quantities (usually expressed as a quotient) ▸ Also see ratios ▸ Word origin ▸ Words similar to ratio ▸ Usage examples for ratio ▸ Popular adjectives describing ratio ▸ Words that often appear near ratio ▸ Rhymes of ratio ▸ Invented words related to ratio