Definitions
1.nounThat part of a circle which a heavenly body appears to pass through as it moves above and below the horizon.
2.nounA continuous part of the circumference of a circle (circular arc) or of another curve.
3.nounA curve, in general.
4.nounA band contained within parallel curves, or something of that shape.
5.noun(electrics) A flow of current across an insulating medium; especially a hot, luminous discharge between either two electrodes or as lightning.
6.nounA story arc.
7.nounA continuous mapping from a real interval (typically [0, 1]) into a space.
8.nounA directed edge.
9.nounThe three-point line.
10.nounAn arclight.
11.verbTo move following a curved path.
12.verbTo shape into an arc; to hold in the form of an arc.
13.verbTo form an electrical arc.