(Anatomy)a vaulted or arched structure in the body, in particular (剖)穹隆,穹,尤指 ■(亦作 fornix cerebri ˈsɛrɪbrʌɪ)a triangular area of white matter in the mammalian brain between the hippocampus and the hypothalamus 大脑穹隆
语源
late 17th cent.: from Latin, literally arch, vaulted chamber'