We found 22 dictionaries that define the word pyorrhea:

General (15 matching dictionaries)

1. pyorrhea: Merriam-Webster
2. pyorrhea: Oxford Learner's Dictionaries
3. pyorrhea: American Heritage Dictionary of the English Language
4. pyorrhea: Collins English Dictionary
5. pyorrhea: Vocabulary.com
6. pyorrhea: Wordnik
7. pyorrhea: Wiktionary
8. pyorrhea: Webster's New World College Dictionary, 4th Ed.
9. pyorrhea: Infoplease Dictionary
10. pyorrhea: Dictionary.com
11. Pyorrhea: Wikipedia, the Free Encyclopedia
12. pyorrhea: Rhymezone
13. pyorrhea: FreeDictionary.org
14. pyorrhea: Mnemonic Dictionary
15. pyorrhea: TheFreeDictionary.com

Art (1 matching dictionary)

16. Pyorrhea: Health & Beauty Glossary

Computing (1 matching dictionary)

17. pyorrhea: Encyclopedia

Medicine (4 matching dictionaries)

18. pyorrhea: Merriam-Webster Medical Dictionary
19. Dorland's Illustrated Medical Dictionary (No longer online)
20. Pyorrhea (periodontitis): Merck Manuals
21. -pyorrhea, pyorrhea: Medical dictionary

Tech (1 matching dictionary)

22. Pyorrhea: Beauty & Health Glossary

(Note: See pyorrheas as well.)

Definitions from Wiktionary (pyorrhea) ▸ noun:  An inflammation of the gums in which the teeth become loose; chronic periodontitis. ▸ noun:  A discharge of pus. Similar: pyorrhoea, pyorrhea alveolaris, pyorrhœa, parodontitis, periodentosis, peridontitis, periodontitis, periodontosis, periodontopathy, parodontopathy, more... Phrases: pyorrhea alveolaris, more... Adjectives: called, severe, advanced, vertical, true, alveolar, systemic, marginal, extensive, chronic, incipient ▸ Words similar to pyorrhea ▸ Usage examples for pyorrhea ▸ Idioms related to pyorrhea ▸ Wikipedia articles (New!) ▸ Popular adjectives describing pyorrhea ▸ Words that often appear near pyorrhea ▸ Rhymes of pyorrhea ▸ Invented words related to pyorrhea