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We found 41 dictionaries with English definitions that include the word plethora:
Click on the first link on a line below to go directly to a page where "plethora" is defined.

General (34 matching dictionaries)

1. plethora: Merriam-Webster.com [home, info]
2. plethora: Oxford Learner's Dictionaries [home, info]
3. plethora: American Heritage Dictionary of the English Language [home, info]
4. plethora: Collins English Dictionary [home, info]
5. plethora: Vocabulary.com [home, info]
6. plethora: Macmillan Dictionary [home, info]
7. Plethora, plethora: Wordnik [home, info]
8. plethora: Cambridge Advanced Learner's Dictionary [home, info]
9. plethora: Wiktionary [home, info]
10. plethora: Webster's New World College Dictionary, 4th Ed. [home, info]
11. plethora: V2 Vocabulary Building Dictionary [home, info]
12. plethora: The Wordsmyth English Dictionary-Thesaurus [home, info]
13. plethora: Infoplease Dictionary [home, info]
14. plethora: Dictionary.com [home, info]
15. plethora: Online Etymology Dictionary [home, info]
16. plethora: UltraLingua English Dictionary [home, info]
17. plethora: Cambridge Dictionary of American English [home, info]
18. Plethora: Wikipedia, the Free Encyclopedia [home, info]
19. Plethora: Online Plain Text English Dictionary [home, info]
20. plethora: Webster's Revised Unabridged, 1913 Edition [home, info]
21. plethora: Rhymezone [home, info]
22. plethora: AllWords.com Multi-Lingual Dictionary [home, info]
23. plethora: Webster's 1828 Dictionary [home, info]
24. plethora: Hutchinson's Dictionary of Difficult Words [home, info]
25. plethora: Free Dictionary [home, info]
26. plethora, plethora: Hutchinson Dictionaries [home, info]
27. plethora: Luciferous Logolepsy [home, info]
28. plethora: Mnemonic Dictionary [home, info]
29. plethora: WordNet 1.7 Vocabulary Helper [home, info]
30. plethora: LookWAYup Translating Dictionary/Thesaurus [home, info]
31. plethora: Dictionary/thesaurus [home, info]
32. plethora: Wikimedia Commons US English Pronunciations [home, info]

Business (1 matching dictionary)

33. plethora: Legal dictionary [home, info]

Computing (1 matching dictionary)

34. plethora: Encyclopedia [home, info]

Medicine (3 matching dictionaries)

35. plethora: online medical dictionary [home, info]
36. plethora: Medical dictionary [home, info]
37. Plethora: Rudy's List of Archaic Medical Terms [home, info]

Miscellaneous (1 matching dictionary)

38. plethora: Wordcraft Dictionary [home, info]

Slang (1 matching dictionary)

39. plethora: Urban Dictionary [home, info]

(Note: See plethoric for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (plethora) ▸ noun:  extreme excess ▸ Also see plethoric ▸ Word origin ▸ Words similar to plethora ▸ Usage examples for plethora ▸ Idioms related to plethora (New!) ▸ Popular adjectives describing plethora ▸ Words that often appear near plethora ▸ Rhymes of plethora ▸ Invented words related to plethora