We found 20 dictionaries that define the word thio-:

General (15 matching dictionaries)

1. thio-: Merriam-Webster
2. thio-: Oxford Learner's Dictionaries
3. thio-: American Heritage Dictionary of the English Language
4. thio-, thio-: Collins English Dictionary
5. thio-: Wordnik
6. thio-: Wiktionary
7. thio-: Webster's New World College Dictionary, 4th Ed.
8. thio-: Dictionary.com
9. Thio-: Wikipedia, the Free Encyclopedia
10. Thio-: Online Plain Text English Dictionary
11. thio-: Webster's Revised Unabridged, 1913 Edition
12. Thio-: AllWords.com Multi-Lingual Dictionary
13. thio-: MyWord.info
14. thio-: FreeDictionary.org
15. thio-: TheFreeDictionary.com

Art (1 matching dictionary)

16. thio-: A Cross Reference of Latin and Greek Elements

Computing (1 matching dictionary)

17. thio-: Encyclopedia

Medicine (2 matching dictionaries)

18. online medical dictionary (No longer online)
19. thio-: Medical dictionary

Science (1 matching dictionary)

20. General Chemistry Online (No longer online)

Definitions from Wikipedia (Thio-) ▸ noun:  The prefix thio-, when applied to a chemical, such as an ion, means that an oxygen atom in the compound has been replaced by a sulfur atom. ▸ Words similar to thio- ▸ Usage examples for thio- ▸ Idioms related to thio- ▸ Wikipedia articles (New!) ▸ Popular adjectives describing thio- ▸ Words that often appear near thio- ▸ Rhymes of thio- ▸ Invented words related to thio-