| 单词 | arc |
| 释义 | arc /ahrk/, n. , v. , arced /ahrkt/ or arcked, arcing /ahr"king/ or arcking. n. 1. Geom. any unbroken part of the circumference of a circle or other curved line. 2. Also called electric arc. Elect. a luminous bridge formed in a gap between two electrodes. Cf. spark1 (def. 2). 3. Astron. the part of a circle representing the apparent course of a heavenly body. 4. anything bow-shaped. v.i. 5. to form an electric arc. 6. to move in a curve suggestive of an arc. [1350-1400; ME ark < L arcus bow, arch, curve] |
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