We found 24 dictionaries that define the word toning:

General (12 matching dictionaries)

1. toning: Merriam-Webster
2. toning: Collins English Dictionary
3. toning: Vocabulary.com
4. Toning, toning: Wordnik
5. toning: Cambridge Advanced Learner's Dictionary
6. toning: Wiktionary
7. toning: Dictionary.com
8. Toning (coin), Toning: Wikipedia, the Free Encyclopedia
9. Toning: Online Plain Text English Dictionary
10. Toning: AllWords.com Multi-Lingual Dictionary
11. toning: FreeDictionary.org
12. toning: TheFreeDictionary.com

Art (1 matching dictionary)

13. Glossary of Stamp Collecting Terms (No longer online)

Business (1 matching dictionary)

14. toning: Legal dictionary

Computing (1 matching dictionary)

15. toning: Encyclopedia

Medicine (3 matching dictionaries)

16. toning: Merriam-Webster Medical Dictionary
17. online medical dictionary (No longer online)
18. toning: Medical dictionary

Miscellaneous (1 matching dictionary)

19. toning: Idioms

Slang (1 matching dictionary)

20. Toning: Urban Dictionary

Tech (4 matching dictionaries)

21. Book Binding (No longer online)
22. Glossary of Film/Video Terms (No longer online)
23. toning: Coin Collecting
24. Book Collectors' Glossary (No longer online)

(Note: See tone as well.)

Definitions from Wiktionary (toning) ▸ noun:  Use of colour; tone. ▸ noun:  The improvement of muscle tone. Similar: long ton, short ton, gross ton, net ton, tint, tinge, skintone, coloring, tincture, colourant, more... Opposite: flabby, unfit, untoned, soft, weak Types: spot toning, selective toning, split toning, duotone, tritone, quadtone, more... Phrases: toning down, toning up, dye toning, Toning exercises, Photographic print toning, more... Adjectives: general, emotional, sepia, gold, blue, half, affective, split, gradual, dye, subsequent ▸ Words similar to toning ▸ Usage examples for toning ▸ Idioms related to toning ▸ Wikipedia articles (New!) ▸ Popular adjectives describing toning ▸ Words that often appear near toning ▸ Rhymes of toning ▸ Invented words related to toning