right angle
noun [ C ] uk/ˈraɪt ˌæŋ.ɡəl/ us/ˈraɪt ˌæŋ.ɡəl/
直角
an angle of 90°
A square has four right angles. 正方形有4个直角。
Bend one arm at the elbow, forming a right angle.
Some of the men were bent over at a right angle under the weight of their packs.
Transverse dunes run at a right angle to the constant wind direction.