(亦作sphenoid bone)a compound 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 蝶骨
adjective
of or relating to this bone (与)蝶骨(有关)的
派生 sphenoidal adjective 语源
mid 18th cent.: from modern Latin sphenoides, from Greek sphēnoeidēs, from sphēn 'wedge'