We found 12 dictionaries that define the word paranasal sinuses:

General (3 matching dictionaries)

1. paranasal sinuses: Wiktionary
2. Paranasal sinuses: Wikipedia, the Free Encyclopedia
3. Paranasal sinuses: TheFreeDictionary.com

Computing (1 matching dictionary)

4. Paranasal sinuses, Sinuses, Paranasal: Encyclopedia

Medicine (8 matching dictionaries)

5. paranasal sinuses: Merriam-Webster Medical Dictionary
6. Dorland's Illustrated Medical Dictionary (No longer online)
7. Medical Dictionary (No longer online)
8. Paranasal sinuses: Merck Manuals
9. online medical dictionary (No longer online)
10. Paranasal sinuses: GLOSSARY OF ALLERGY TERMS
11. Sinuses, Paranasal, paranasal sinuses: Medical dictionary
12. Hyperdictionary (No longer online)

Definitions from Wikipedia (Paranasal sinuses) ▸ noun:  a group of four paired air-filled spaces that surround the nasal cavity. ▸ Words similar to paranasal sinuses ▸ Usage examples for paranasal sinuses ▸ Idioms related to paranasal sinuses ▸ Wikipedia articles (New!) ▸ Words that often appear near paranasal sinuses ▸ Rhymes of paranasal sinuses ▸ Invented words related to paranasal sinuses