[ahrk] 
noun, verb, arced [ahrkt] or arcked, arc⋅ing [ahr-king] or arck⋅ing.| 1. | Geometry. any unbroken part of the circumference of a circle or other curved line. |
| 2. | Also called electric arc. Electricity. a luminous bridge formed in a gap between two electrodes. Compare spark 1 (def. 2). |
| 3. | Astronomy. the part of a circle representing the apparent course of a heavenly body. |
| 4. | anything bow-shaped. |
| 5. | to form an electric arc. |
| 6. | to move in a curve suggestive of an arc. |
ARC abbr.
AIDS-related complex
arc (ärk) Pronunciation Key
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