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We found 31 dictionaries with English definitions that include the word ortho:
Click on the first link on a line below to go directly to a page where "ortho" is defined.

General (18 matching dictionaries)

1. ortho, ortho, ortho-: Dictionary/thesaurus [home, info]
2. ortho, ortho-: Merriam-Webster.com [home, info]
3. ortho-: Oxford Dictionaries [home, info]
4. ortho, ortho-: American Heritage Dictionary of the English Language [home, info]
5. ortho-, ortho-: Collins English Dictionary [home, info]
6. Ortho, ortho, ortho-: Wordnik [home, info]
7. ortho, ortho-: Wiktionary [home, info]
8. ortho-: Webster's New World College Dictionary, 4th Ed. [home, info]
9. ortho-: The Wordsmyth English Dictionary-Thesaurus [home, info]
10. ortho: Infoplease Dictionary [home, info]
11. ORTHO, Ortho-, ortho-: Dictionary.com [home, info]
12. ortho-: Online Etymology Dictionary [home, info]
13. Ortho-, Ortho- (chemistry), Ortho: Wikipedia, the Free Encyclopedia [home, info]
14. Ortho-: Online Plain Text English Dictionary [home, info]
15. ortho-: Webster's Revised Unabridged, 1913 Edition [home, info]
16. Ortho-: AllWords.com Multi-Lingual Dictionary [home, info]
17. ortho, ortho-: MyWord.info [home, info]
18. ortho-: Free Dictionary [home, info]

Art (1 matching dictionary)

19. ortho-: A Cross Reference of Latin and Greek Elements [home, info]

Medicine (6 matching dictionaries)

20. ortho, ortho-: Medical dictionary [home, info]
21. Ortho- (prefix): Drug Medical Dictionary [home, info]
22. Ortho- (prefix): MedTerms.com Medical Dictionary [home, info]
23. ORTHO: UK Medical Acronyms [home, info]
24. ortho-: online medical dictionary [home, info]
25. ortho-: Neurotrauma Glossary [home, info]

Miscellaneous (2 matching dictionaries)

26. ORTHO: AbbreviationZ [home, info]
27. ORTHO-, ORTHO: Acronym Finder [home, info]

Slang (1 matching dictionary)

28. ortho: Urban Dictionary [home, info]

Tech (3 matching dictionaries)

29. Ortho: PhotoNotes Dictionary of Film and Digital Photography [home, info]
30. ORTHO: Glossary of Composite Terms [home, info]
31. Ortho (Orthochromatic): Glossary of Film/Video Terms [home, info]

▸ Word origin ▸ Words similar to ortho ▸ Usage examples for ortho ▸ Words that often appear near ortho ▸ Rhymes of ortho ▸ Invented words related to ortho