Webster dictionary was developed by Noah Webster in the beginning of 19th century. On this website, you can find definition for arc from the 1913 edition of Webster's Revised Unabridged Dictionary. Define arc using one of the most comprehensive free online dictionaries on the web.

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arc
Part of Speech: noun
Results: 5
1. A portion of a curved line; as, the arc of a circle or of an ellipse.
2. A curvature in the shape of a circular arc or an arch; as, the colored arc ( the rainbow); the arc of Hadley's quadrant.
3. An arch.
Part of Speech: verb
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