We found 28 dictionaries that define the word dioxide:

General (21 matching dictionaries)

1. dioxide: Merriam-Webster
2. dioxide: Oxford Learner's Dictionaries
3. dioxide: American Heritage Dictionary of the English Language
4. dioxide: Collins English Dictionary
5. dioxide: Vocabulary.com
6. Dioxide, dioxide: Wordnik
7. dioxide: Cambridge Advanced Learner's Dictionary
8. dioxide: Wiktionary
9. dioxide: Webster's New World College Dictionary, 4th Ed.
10. dioxide: The Wordsmyth English Dictionary-Thesaurus
11. dioxide: Infoplease Dictionary
12. dioxide: Dictionary.com
13. dioxide: Cambridge Essential American English Dictionary
14. Dioxide: Online Plain Text English Dictionary
15. dioxide: Webster's Revised Unabridged, 1913 Edition
16. dioxide: Rhymezone
17. Dioxide: AllWords.com Multi-Lingual Dictionary
18. dioxide: FreeDictionary.org
19. dioxide: Mnemonic Dictionary
20. dioxide: TheFreeDictionary.com
21. dioxide: Longman Dictionary of Contemporary English

Computing (1 matching dictionary)

22. dioxide: Encyclopedia

Medicine (4 matching dictionaries)

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

Slang (1 matching dictionary)

27. Dioxide: Urban Dictionary

Tech (1 matching dictionary)

28. AUTOMOTIVE TERMS (No longer online)

(Note: See dioxides as well.)

Definitions from Wiktionary (dioxide) ▸ noun:  (chemistry) Any oxide containing two oxygen atoms in each molecule. Similar: monoxide, tetrachloride, oxide, carbon, tetrafluoride, phosphide, hexafluoride, dinitrogen, hydroxide, protoxide, more... Opposite: monoxide, pure, element, single, compound, undivided, uncombined Types: carbon dioxide, nitrogen dioxide, ozone, water vapor, hydrogen oxide, sulfur dioxide, more... Phrases: carbon dioxide, sulfur dioxide, sulphur dioxide, nitrogen dioxide, titanium dioxide, more... Adjectives: atmospheric, solid, more, liquid, free, supercritical, excess, nitrogen, pure, gaseous, chlorine Colors:     sulfur yellow,     cobalt blue, more... ▸ Words similar to dioxide ▸ Usage examples for dioxide ▸ Idioms related to dioxide ▸ Wikipedia articles (New!) ▸ Popular adjectives describing dioxide ▸ Words that often appear near dioxide ▸ Rhymes of dioxide ▸ Invented words related to dioxide