inion

详细解释:【医】 枕外隆凸尖

英语解释：

名词 inion:

the craniometric point that is the most prominent point at the back of the head (at the occipital protuberance)

详细解释：

in.i.on

n.（名词）
The most prominent projecting point of the occipital bone at the base of the skull.
枕外隆凸点：头盖骨上最突出的骨点

来源：
Greek [occipital bone]
希腊语 [圆骨头]
from is in- [sinew, fiber] * see wei-
源自 is in- [肌腱，纤维] *参见 wei-