Source : Webster's Revised Unabridged Dictionary (1913)

Infraction \In*frac"tion\, n. [L. infractio: cf. F. infraction.]
   The act of infracting or breaking; breach; violation;
   nonobservance; infringement; as, an infraction of a treaty,
   compact, rule, or law. --I. Watts.

Source : WordNet®

infraction
     n : a crime less serious than a felony [syn: {misdemeanor}, {misdemeanour},
          {offence}, {offense}, {violation}, {infringement}]