We found 59 dictionaries that define the word pneumonia:

General (27 matching dictionaries)

1. pneumonia: Longman Dictionary of Contemporary English
2. pneumonia: Merriam-Webster
3. pneumonia: Oxford Learner's Dictionaries
4. pneumonia: American Heritage Dictionary of the English Language
5. pneumonia: Collins English Dictionary
6. pneumonia: Vocabulary.com
7. Pneumonia, pneumonia: Wordnik
8. pneumonia: Cambridge Advanced Learner's Dictionary
9. pneumonia: Wiktionary
10. pneumonia: Webster's New World College Dictionary, 4th Ed.
11. pneumonia: The Wordsmyth English Dictionary-Thesaurus
12. pneumonia: Infoplease Dictionary
13. pneumonia: Dictionary.com
14. pneumonia: Online Etymology Dictionary
15. pneumonia: Cambridge Essential American English Dictionary
16. Pneumonia (album), Pneumonia (disambiguation), Pneumonia (non-human): Wikipedia, the Free Encyclopedia
17. pneumonia: Rhymezone
18. Pneumonia: AllWords.com Multi-Lingual Dictionary
19. pneumonia: Webster's 1828 Dictionary
20. pneumonia: FreeDictionary.org
21. pneumonia: Mnemonic Dictionary
22. pneumonia: TheFreeDictionary.com
23. Pneumonia: Wikipedia, the Free Encyclopedia
24. Pneumonia: Online Plain Text English Dictionary
25. pneumonia: Webster's Revised Unabridged, 1913 Edition

Art (1 matching dictionary)

26. Pneumonia: Health & Beauty Glossary

Computing (1 matching dictionary)

27. pneumonia: Encyclopedia

Medicine (22 matching dictionaries)

28. pneumonia: Merriam-Webster Medical Dictionary
29. Dorland's Illustrated Medical Dictionary (No longer online)
30. Pneumonia: MedTerms.com Medical Dictionary
31. Medical Dictionary (No longer online)
32. Breast Cancer Talking Dictionary (No longer online)
33. Pneumonia: Merck Manuals
34. online medical dictionary (No longer online)
35. Health and Wellness Dictionary (No longer online)
36. Probert Encyclopaedia of Medicine (No longer online)
37. Hepatitis C Information Central (No longer online)
38. Specific Diseases/Disorders (No longer online)
39. KidsHealth Glossary of Medical Words (No longer online)
40. Pneumonia: MEDLINE plus Illustrated Medical Encyclopedia
41. pneumonia: Dictionary of Cancer Terms
42. National Immunization Program Glossary (No longer online)
43. pneumonia: Parents' Common Sense Encyclopedia
44. Glossary of HIV/AIDS Related Terms (No longer online)
45. A-Z Family health glossary (No longer online)
46. -pneumonia, pneumonia: Medical dictionary
47. University of Maryland Glossary of Medical Terms (No longer online)
48. Pneumonia: Drug Medical Dictionary
49. Hyperdictionary (No longer online)

Miscellaneous (2 matching dictionaries)

50. Sociology (No longer online)
51. pneumonia: Idioms

Science (1 matching dictionary)

52. Agricultural Thesaurus and Glossary (No longer online)

Slang (2 matching dictionaries)

53. pneumonia: Green’s Dictionary of Slang
54. pneumonia: Urban Dictionary

Tech (3 matching dictionaries)

55. Dairy Glossary (No longer online)
56. Pneumonia: Beauty & Health Glossary
57. Washington State Definitions and Abbreviations of Vetrinary Terms (No longer online)

(Note: See pneumonias as well.)

Definitions from Wiktionary ( ) ▸ noun:  Inflammation of the lungs caused by viruses, bacteria or other infectious microorganisms. Similar: lobar pneumonia, pulmonitis, pneumocytosis, pneumococcus, metapneumonia, pneumocystis pneumonia, pneumovirus, atypical pneumonia, walking pneumonia, pneumotoxicity, more... Opposite: health, wellness, vigor, robustness, strength Types: atypical, bacterial, viral, fungal, legionnaires', more... Phrases: Aspiration pneumonia, Bacterial pneumonia, interstitial pneumonia, lobar pneumonia, pneumococcal pneumonia, more... Adjectives: lobar, interstitial, bacterial, broncho, pneumococcal, acute, atypical, acquired, nosocomial, croupous, primary Colors:     blue,     gray,     white,     cyan,     teal, more... ▸ Word origin ▸ Words similar to pneumonia ▸ Usage examples for pneumonia ▸ Idioms related to pneumonia ▸ Wikipedia articles (New!) ▸ Popular adjectives describing pneumonia ▸ Words that often appear near pneumonia ▸ Rhymes of pneumonia ▸ Invented words related to pneumonia