an arc struck between the tip of a carbon electrode and a piece of metal being welded

(soccer) An arc whose center is the penalty spot, extending from the top of the penalty area.

An angle, one sixtieth of a degree.

An angle, one sixtieth (1/60th) of a minute of arc or one 3600th of a degree.

An electric arc arranged so as to produce useful light.

(astrology) the path followed by a planet, point, or degree from its rising point to its setting point.

plural of circular arc

plural of arc lamp

(architecture) Synonym of flying buttress

A rare halo, formed by internal reflection through ice crystals, that curves upwards from the horizon and touches the tricker arc above the anthelic point.