maxillary sinus
noun
: an air cavity in the body of the maxilla that communicates with the middle meatus of the nose
called also antrum of Highmore
Cite this Entry
“Maxillary sinus.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/maxillary%20sinus. Accessed 29 Nov. 2025.
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