We found 31 dictionaries that define the word periodontal:

General (21 matching dictionaries)

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

Business (1 matching dictionary)

22. Periodontal: Glossary of Health Care Terms

Computing (1 matching dictionary)

23. periodontal: Encyclopedia

Medicine (8 matching dictionaries)

24. periodontal: Merriam-Webster Medical Dictionary
25. Dorland's Illustrated Medical Dictionary (No longer online)
26. Periodontal: MedTerms.com Medical Dictionary
27. Orthodontic Terms (No longer online)
28. online medical dictionary (No longer online)
29. periodontal: Medical dictionary
30. Periodontal: Drug Medical Dictionary
31. Hyperdictionary (No longer online)

(Note: See periodontally as well.)

Definitions from Wiktionary (periodontal) ▸ adjective:  surrounding a tooth ▸ adjective:  Relating to the periodontium ▸ adjective:  Relating to periodontics Similar: periodontic, endoperiodontal, peridontal, periondontal, periapical, circumpulpal, perieruptional, periimplant, pericemental, periocclusion, more... Opposite: supragingival, odontal, gingival, periapical Types: gingivitis, periodontitis, pyorrhea, more... Phrases: Periodontal disease, periodontal ligament, periodontal membrane, periodontal diseases, periodontal therapy, more... Adjectives: endodontic, healthy, acute, poor, gingival Colors:     red,     pink,     white,     gray,     brown, more... ▸ Word origin ▸ Words similar to periodontal ▸ Usage examples for periodontal ▸ Idioms related to periodontal ▸ Wikipedia articles (New!) ▸ Popular nouns described by periodontal ▸ Words that often appear near periodontal ▸ Rhymes of periodontal ▸ Invented words related to periodontal