From Longman Dictionary of Contemporary Englisharcarc /ɑːk $ ɑːrk/ ●○○ noun [countable] 1 CFBENDa curved shape or line the arc of a rainbow2 BENDpart of a curved line or a circle The Sun moves across the sky in an arc.3 TEEa flash of light formed by the flow of electricity between two points —arc verb [intransitive]
Examples from the Corpus
arc• The islands lie in an arc in the eastern Caribbean.• They may also be decorated with dots, arcs, circles, triangles, stamped, notched or bear incised lines.• Out past the northern arc of the perimeter highway, comfortable subdivisions have been carved under a leafy canopy.• One often meets graphs in which the arcs have names too.Origin arc (1300-1400) Old French Latin arcus “bow, arch, arc” 