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We found 52 dictionaries with English definitions that include the word tonic:
Click on the first link on a line below to go directly to a page where "tonic" is defined.

General (32 matching dictionaries)

1. tonic: Merriam-Webster.com [home, info]
2. tonic: Oxford Learner's Dictionaries [home, info]
3. tonic: American Heritage Dictionary of the English Language [home, info]
4. tonic: Collins English Dictionary [home, info]
5. tonic: Vocabulary.com [home, info]
6. tonic, tonic: Macmillan Dictionary [home, info]
7. Tonic, tonic: Wordnik [home, info]
8. tonic: Cambridge Advanced Learner's Dictionary [home, info]
9. tonic: Wiktionary [home, info]
10. tonic: Webster's New World College Dictionary, 4th Ed. [home, info]
11. tonic: V2 Vocabulary Building Dictionary [home, info]
12. tonic: The Wordsmyth English Dictionary-Thesaurus [home, info]
13. tonic: Infoplease Dictionary [home, info]
14. -tonic, tonic: Dictionary.com [home, info]
15. tonic (adj.): Online Etymology Dictionary [home, info]
16. tonic: UltraLingua English Dictionary [home, info]
17. tonic: Cambridge Dictionary of American English [home, info]
18. Tonic (Medeski Martin & Wood album), Tonic (Tonic album), Tonic (band), Tonic (disambiguation), Tonic (film), Tonic (music), Tonic (music venue), Tonic (physiology), Tonic: Wikipedia, the Free Encyclopedia [home, info]
19. Tonic: Online Plain Text English Dictionary [home, info]
20. tonic: Webster's Revised Unabridged, 1913 Edition [home, info]
21. tonic: Rhymezone [home, info]
22. Tonic: AllWords.com Multi-Lingual Dictionary [home, info]
23. tonic: Webster's 1828 Dictionary [home, info]
24. tonic: Hutchinson's Dictionary of Difficult Words [home, info]
25. tonic: Free Dictionary [home, info]
26. tonic: Hutchinson Dictionaries [home, info]
27. tonic: Mnemonic Dictionary [home, info]
28. tonic: WordNet 1.7 Vocabulary Helper [home, info]
29. tonic: LookWAYup Translating Dictionary/Thesaurus [home, info]
30. tonic: Dictionary/thesaurus [home, info]

Art (4 matching dictionaries)

31. Tonic: Health & Beauty Glossary [home, info]
32. tonic: Essentials of Music [home, info]
33. Tonic: Virginia Tech Multimedia Music Dictionary [home, info]
34. -tonic: A Cross Reference of Latin and Greek Elements [home, info]

Business (1 matching dictionary)

35. Tonic (music), tonic: Legal dictionary [home, info]

Computing (1 matching dictionary)

36. Tonic (music), tonic: Encyclopedia [home, info]

Medicine (7 matching dictionaries)

37. tonic: Natural Health glossary [home, info]
38. tonic: online medical dictionary [home, info]
39. Tonic: Hepatitis C Information Central [home, info]
40. Tonic: Sleep Terms [home, info]
41. Tonic (music), -tonic, tonic: Medical dictionary [home, info]
42. tonic: Vitamin Glossary [home, info]
43. tonic: Hyperdictionary [home, info]

Miscellaneous (1 matching dictionary)

44. TONIC: Acronym Finder [home, info]

Slang (3 matching dictionaries)

45. Tonic: Totally Unofficial Rap [home, info]
46. tonic: The Folk File [home, info]
47. tonic: Urban Dictionary [home, info]

Tech (3 matching dictionaries)

48. Tonic: Beauty & Health Glossary [home, info]
49. tonic: Rane Professional Audio Reference [home, info]
50. Tonic: Sweetwater Music [home, info]

(Note: See tonics for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (tonic) ▸ noun:  a medicine that strengthens and invigorates ▸ noun:  (music) the first note of a diatonic scale ▸ noun:  lime- or lemon-flavored carbonated water containing quinine ▸ noun:  a sweet drink containing carbonated water and flavoring ("In New England they call sodas tonics") ▸ adjective:  used of syllables ("A tonic syllables carries the main stress in a word") ▸ adjective:  relating to or being the keynote of a major or minor scale ("Tonic harmony") ▸ adjective:  employing variations in pitch to distinguish meanings of otherwise similar words ▸ adjective:  of or relating to or producing normal tone or tonus in muscles or tissue ("A tonic reflex") ▸ adjective:  imparting vitality and energy ▸ name:  A surname (very rare: popularity rank in the U.S.: #67098) ▸ Also see tonics ▸ Word origin ▸ Words similar to tonic ▸ Usage examples for tonic ▸ Idioms related to tonic (New!) ▸ Popular adjectives describing tonic ▸ Popular nouns described by tonic ▸ Words that often appear near tonic ▸ Rhymes of tonic ▸ Invented words related to tonic