A continuing flow of electricity through a gas-filled space that is luminous owing to ionization of the gas by the current. Also figurative.
| 单词 | θ77066 |
| 释义 | the world > matter > physics > electromagnetic radiation > electricity > discharge of electricity > [noun] > discharge arc (5) electric arc1849 A continuing flow of electricity through a gas-filled space that is luminous owing to ionization of the gas by the current. Also figurative. hissing arc1895 an electric arc which emits a hissing sound. Subcategories:— initiation of (1) — accidental (2) |
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