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We found 47 dictionaries with English definitions that include the word diphtheria:
Click on the first link on a line below to go directly to a page where "diphtheria" is defined.

General (31 matching dictionaries)

1. diphtheria: Merriam-Webster.com [home, info]
2. diphtheria: Oxford Dictionaries [home, info]
3. diphtheria: American Heritage Dictionary of the English Language [home, info]
4. diphtheria: Collins English Dictionary [home, info]
5. diphtheria: Vocabulary.com [home, info]
6. diphtheria: Macmillan Dictionary [home, info]
7. Diphtheria, diphtheria: Wordnik [home, info]
8. diphtheria: Cambridge Advanced Learner's Dictionary [home, info]
9. diphtheria: Wiktionary [home, info]
10. diphtheria: Webster's New World College Dictionary, 4th Ed. [home, info]
11. diphtheria: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. diphtheria: Infoplease Dictionary [home, info]
13. diphtheria: Dictionary.com [home, info]
14. diphtheria: Online Etymology Dictionary [home, info]
15. diphtheria: UltraLingua English Dictionary [home, info]
16. diphtheria: Cambridge Dictionary of American English [home, info]
17. Diphtheria: Wikipedia, the Free Encyclopedia [home, info]
18. Diphtheria: Online Plain Text English Dictionary [home, info]
19. diphtheria: Webster's Revised Unabridged, 1913 Edition [home, info]
20. diphtheria: Rhymezone [home, info]
21. Diphtheria: AllWords.com Multi-Lingual Dictionary [home, info]
22. Diphtheria: Encarta® Online Encyclopedia, North American Edition [home, info]
23. Diphtheria: 1911 edition of the Encyclopedia Britannica [home, info]
24. diphtheria: Free Dictionary [home, info]
25. diphtheria: Hutchinson Dictionaries [home, info]
26. diphtheria: Mnemonic Dictionary [home, info]
27. diphtheria: WordNet 1.7 Vocabulary Helper [home, info]
28. diphtheria: LookWAYup Translating Dictionary/Thesaurus [home, info]
29. diphtheria: Dictionary/thesaurus [home, info]

Computing (1 matching dictionary)

30. diphtheria: Encyclopedia [home, info]

Medicine (14 matching dictionaries)

31. Diphtheria: MedTerms.com Medical Dictionary [home, info]
32. Diphtheria: Medical Dictionary [home, info]
33. Diphtheria: Merck Manuals [home, info]
34. Diphtheria: MedFriendly Glossary [home, info]
35. diphtheria: online medical dictionary [home, info]
36. Diphtheria: Health and Wellness Dictionary [home, info]
37. DIPHTHERIA: Probert Encyclopaedia of Medicine [home, info]
38. Diphtheria: Specific Diseases/Disorders [home, info]
39. Diphtheria: MEDLINE plus Illustrated Medical Encyclopedia [home, info]
40. Diphtheria: National Immunization Program Glossary [home, info]
41. diphtheria: Parents' Common Sense Encyclopedia [home, info]
42. diphtheria: Medical dictionary [home, info]
43. Diphtheria: University of Maryland Glossary of Medical Terms [home, info]
44. Diphtheria: Drug Medical Dictionary [home, info]

Slang (1 matching dictionary)

45. Diphtheria: Urban Dictionary [home, info]

(Note: See diphtheritic for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (diphtheria) ▸ noun:  acute contagious infection caused by the bacterium Corynebacterium diphtheriae; marked by the formation of a false membrane in the throat and other air passages causing difficulty in breathing ▸ Also see diphtheritic ▸ Word origin ▸ Words similar to diphtheria ▸ Usage examples for diphtheria ▸ Popular adjectives describing diphtheria ▸ Words that often appear near diphtheria ▸ Rhymes of diphtheria ▸ Invented words related to diphtheria