sphenoid sinus
noun
variants
or sphenoidal sinus
: either of two irregular cavities in the body of the sphenoid bone that communicate with the nasal cavities
Dictionary Entries Near sphenoid sinus
Cite this Entry
“Sphenoid sinus.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/sphenoid%20sinus. Accessed 15 Dec. 2024.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share