sphe·noid
ˈsfē-ˌnȯid 
variants
or sphenoidal
1
: of, relating to, or being a winged compound bone of the base of the cranium
2
usually sphenoidal
: having a wedged shape
: a sphenoid bone
Examples of sphenoid in a Sentence
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Amanda MacMillan, Health.com, 16 Mar. 2018
Amanda MacMillan, Health, 9 Aug. 2023
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Adjective
But occasionally, infections can occur in a region called the sphenoid sinus, located behind the eyes near the optic nerve.
—Amanda MacMillan, Health.com, 16 Mar. 2018
Noun
But occasionally, infections can occur in a region called the sphenoid sinus, located behind the eyes near the optic nerve.
—Amanda MacMillan, Health, 9 Aug. 2023
Dictionary Entries Near sphenoid
Cite this Entry
“Sphenoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sphenoid. Accessed 26 Nov. 2024.
Copy CitationMedical Definition
sphenoid
1 of 2 adjective
sphe·noid
ˈsfē-ˌnȯid
variants
or sphenoidal
: of, relating to, or being a compound bone of the base of the cranium of various vertebrates formed by the fusion of several bony elements with the basisphenoid and in humans consisting of a median body from whose sides extend a pair of broad curved winglike expansions in front of which is another pair of much smaller triangular lateral processes while ventrally two large deeply cleft processes extend downward see greater wing, lesser wing
sphenoid
2 of 2 noun
: a sphenoid bone
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