culmen
/ˈkʌlmen/noun
(pl. culmina /-mɪnə/)
1
- Ornithology the upper ridge of a bird's bill【鸟】（鸟的）嘴峰。
2
- Anatomy a small region in the brain on the anterior surface of the cerebellum【剖】山顶（位于小脑表面的前部脑内）。
词源
mid 17th cent. （in the sense 'top, summit'）： from Latin, contraction of columen 'top, summit'.