Definition of

Arc

  1. (noun, phenomenon) electrical conduction through a gas in an applied electric field
  2. (noun, shape) a continuous portion of a circle
  3. (noun, shape) something curved in shape
  4. (verb, motion) form an arch or curve
    her hips curve nicely

via WordNet, Princeton University

Origin of the word Arc

  1. late 14c., from O.Fr. arc, from L. arcus "a bow, arch," from PIE base *arqu- "bowed, curved" (cf. Goth. arhvazna "arrow," O.E. earh, O.N. ?r). Electrical sense is from 1821. more

via Online Etymology Dictionary, ©2001 Douglas Harper

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