Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary

air sinus

noun

Medical Definition of air sinus

  1. :  an air-containing cavity (as a paranasal sinus and especially a maxillary sinus) in bone




Seen and Heard

What made you want to look up air sinus? Please tell us where you read or heard it (including the quote, if possible).