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We found 22 dictionaries with English definitions that include the word proto-:
Click on the first link on a line below to go directly to a page where "proto-" is defined.

General (18 matching dictionaries)

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

Art (1 matching dictionary)

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

Medicine (2 matching dictionaries)

20. proto-: online medical dictionary [home, info]
21. proto-: Medical dictionary [home, info]

Science (1 matching dictionary)

22. proto-: Archaeology Wordsmith [home, info]

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