noun
angle of friction; frictional angle
Technical term in physics and engineering; the angle at which an object begins to slide on an inclined plane due to friction.
摩擦角は、物体が滑り始める斜面の角度として定義される。
The angle of friction is defined as the angle of an inclined plane at which an object begins to slide.
Compound of 摩擦 (friction) and 角 (angle).