We found 28 dictionaries that define the word tonus:

General (20 matching dictionaries)

1. tonus: Merriam-Webster
2. tonus: Oxford Learner's Dictionaries
3. tonus: American Heritage Dictionary of the English Language
4. tonus: Collins English Dictionary
5. tonus: The Wordsmyth English Dictionary-Thesaurus
6. tonus: Infoplease Dictionary
7. tonus: Dictionary.com
8. Tonus: Wikipedia, the Free Encyclopedia
9. Tonus: Online Plain Text English Dictionary
10. tonus: Webster's Revised Unabridged, 1913 Edition
11. tonus: Rhymezone
12. Tonus: AllWords.com Multi-Lingual Dictionary
13. tonus: FreeDictionary.org
14. tonus: The Phrontistery - A Dictionary of Obscure Words
15. tonus: Mnemonic Dictionary
16. tonus: TheFreeDictionary.com
17. tonus: Webster's New World College Dictionary, 4th Ed.
18. tonus: Vocabulary.com
19. tonus: Wordnik
20. tonus: Wiktionary

Art (1 matching dictionary)

21. Virginia Tech Multimedia Music Dictionary (No longer online)

Computing (1 matching dictionary)

22. tonus: Encyclopedia

Medicine (5 matching dictionaries)

23. tonus: Merriam-Webster Medical Dictionary
24. Dorland's Illustrated Medical Dictionary (No longer online)
25. online medical dictionary (No longer online)
26. Neurotrauma Glossary (No longer online)
27. tonus: Medical dictionary

Slang (1 matching dictionary)

28. tonus: Urban Dictionary

Definitions from Wiktionary (tonus) ▸ noun:  (biology) tonicity; tone ▸ noun:  A tonal system or mode used in Gregorian chant. Similar: tonicity, tone, muscle tone, electrotonus, tetanus, neurotonic, normotonia, orthotonus, ionotropy, tennessium, more... Phrases: muscle tonus, muscular tonus, tonus peregrinus, more... Adjectives: muscular, normal, postural, sympathetic, general, gastric, vascular, high, low, plastic, extensor ▸ Words similar to tonus ▸ Usage examples for tonus ▸ Idioms related to tonus ▸ Wikipedia articles (New!) ▸ Popular adjectives describing tonus ▸ Words that often appear near tonus ▸ Rhymes of tonus ▸ Invented words related to tonus