vertex

名词 vertex:

1. the point of intersection of lines or the point opposite the base of a figure
2. the highest point (of something)
   同义词：peak, apex, acme

1. The perpendicular distance from the base of a geometric figure to the opposite vertex, parallel side, or parallel surface.
   顶垂线，高线从一个几何形体的底边到相对的顶点、平行边或平行面的垂直距离
2. Situated at the vertex or highest point; directly overhead.
   顶点的在顶点或者最高点的; 头的正上方的

ver.tex

n.（名词）
【复数】 ver.tex.es 或 ver.ti.ces [-t-sôz.]
The highest point; the apex or summit:
最高点；顶点或顶峰：
例句：
the vertex of a mountain.
山峰

Anatomy
【解剖学】
The highest point of the skull.
颅顶
The top of the head.
头顶
Astronomy The highest point reached in the apparent motion of a celestial body.
【天文学】 天顶：一个天体的明显运动达到最高点
Mathematics
【数学】
The point at which the sides of an angle intersect.
顶点：角的两边相交的点
The point on a triangle or pyramid opposite to and farthest away from its base.
角顶：三角形或者角锥的与其底边相对且具底边最远的顶点
A point on a polyhedron common to three or more sides.
顶点：共有三个或者三个以上边的多面体的顶点

来源：
Latin [whirling column, vertex]
拉丁语 [旋转的柱子，顶点]
from vertere [to turn] * see wer- 2
源自 vertere [转向] *参见 wer- 2