sphenoid
English
Etymology
From New Latin sphenoides, from Ancient Greek σφηνοειδής (sphēnoeidḗs, “wedge-shaped”), from σφήν (sphḗn, “wedge”) + -ειδής (-eidḗs, “-form, -like”).
Pronunciation
- IPA(key): /ˈsfiː.nɔɪd/
- Rhymes: -ɔɪd
Adjective
sphenoid (not comparable)
- Having a wedged shape.
- (anatomy) Of or relating to the sphenoid bone which forms the base of the cranium, behind the eye and below the front part of the brain. It has two pairs of broad lateral ‘wings’ and a number of other projections, and contains two air-filled sinuses.
Derived terms
- alisphenoid
- basisphenoid
- ethmosphenoid
- frontosphenoid
- intrasphenoid
- laterosphenoid
- mesosphenoid
- otosphenoidal
- parasphenoid
- pleurosphenoid
- presphenoid
- pterosphenoid
- spheno-
- sphenoethmoid
- sphenofrontal
- sphenoidal
- sphenoid bone
- sphenoidectomy
- sphenoidotomy
- sphenoid sinus
- sphenoid sinus
- sphenomandibular
- sphenomaxillary
- sphenooccipital
- sphenopalatine
- sphenoparietal
- sphenotemporal
- sphenotic
- sphenovomerine
- sphenozygomatic
- temporosphenoid
- transsphenoidal
- zygomaticosphenoid
Translations
wedge-shaped
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Noun
sphenoid (plural sphenoids)
- (anatomy) The sphenoid bone.
- (crystallography) A wedge-shaped crystal bounded by four equal isosceles triangles; the hemihedral form of a square pyramid.
Translations
sphenoid bone — see sphenoid bone
References
- “sphenoid”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
- “sphenoid”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
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