noun
control point
Computing term for a point used to control a curve, surface, or process, often abbreviated as CM.
ベジェ曲線は制御点によって形状が決まる。
The shape of a Bézier curve is determined by its control points.
このソフトでは制御点をドラッグして曲線を編集できる。
In this software, you can edit the curve by dragging the control points.