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  1. arc

    • IPA[ärk]

    美式

    • n.
      a part of the circumference of a circle or other curve;a curved shape, or something shaped like a curve
    • v.
      move with a curving trajectory;form an electric arc
    • verb: arc, 3rd person present: arcs, gerund or present participle: arcing, past tense: arced, past participle: arced

    • noun: arc, plural noun: arcs

    • 釋義

    名詞

    • 1. a part of the circumference of a circle or other curve the point where a tangential line touches the arc of a circle
    • a curved shape, or something shaped like a curve the huge arc of the sky
    • a curving trajectory he swung his flashlight in a wide arc
    • indicating the inverse of a trigonometrical function.
    • 2. a luminous electrical discharge between two electrodes or other points modern welding generators are designed so that there is a high voltage for striking the arc
    • 3. (in a novel, play, or movie) the development or resolution of the narrative or principal theme his transformation provides the emotional arc of the story

    動詞

    • 1. move with a curving trajectory the ball arced across the room
    • 2. form an electric arc the outage was caused by a bad switch that arced I have no idea whether they touched the power lines or arced