ethmoid sinus

noun
variants: also ethmoidal sinus

Medical Definition of ethmoid sinus

: either of two sinuses each of which is situated in a lateral part of the ethmoid bone alongside the nose and consists of ethmoidal air cells

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Dictionary Entries Near ethmoid sinus

ethmoiditis

ethmoid sinus

ethmomaxillary

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Cite this Entry

“Ethmoid sinus.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/ethmoid%20sinus. Accessed 4 Dec. 2021.

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