#1 arc n. [discharge, spark, electric arc, electric discharge] electrical conduction through a gas in an applied electric field. wn
#2 arc n. a continuous portion of a circle. wn
#3 arc v. [arch, curve] form an arch or curve; "her back arches"; "her hips curve nicely". wn
#4 arc n. [bow] something curved in shape. wn
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