perpendicular

1. ADJ A perpendicular line or surface points straight up, rather than being sloping or horizontal. 垂直的[usu ADJ n]

We made two slits for the eyes and a perpendicular line for the nose. 我們劃了兩道縫兒做眼睛,一條竪線做鼻子。

The sides of the mountain are almost perpendicular. 山的兩側幾乎是垂直的。

2. ADJ If one thing is perpendicular to another, it is at an angle of 90 degrees to it. 垂直於的[正式] [usu v-link ADJ 'to' n]

The left wing dipped until it was perpendicular to the ground. 左翼下垂至與地麪成90度角。