Related topics: Shapes, patterns, Electrical, Maths
arc /ɑːk $ ɑːrk/ ●○○ noun [countableC] → ark1 CFBENDa curved shape or line 弧(状) the arc of a rainbow 彩虹的弧状
2 BENDpart of a curved line or a circle 弧线;弧形 The Sun moves across the sky in an arc. 太阳在天空中以弧线方式运行。
3. TEEa flash of light formed by the flow of electricity between two points 弧光,电弧
—arc verb [intransitiveI]