Arc
In
mathematics, an
arc is a part of a
circle between two points (also called a
circle segment). A
minute of arc is an
angle measure, being 1/60 of a
degree. A
second of arc is 1/60 of a minute of arc.
In graph theory, an arc is a synonym for an edge.
Arc is also a name for a dialect of the Lisp programming language.
See also: Arc lamp, voltaic arc.