sphenoidal fontanelle
/ˈsfɛnɔɪd ˈbəʊn/
n
English · sphenoidal fontanelle中文 · 蝶囟Español · fontanela esfenoidalFrançais · fontanelle sphénoïdale
意味：Membranous space between the frontal, parietal, temporal and sphenoid bones; it closes at about the age of two or three months.