a wandering; a roving or irregular course.-a wandering or deviation from the right course or standard; irregularity; mistake; inaccuracy; something made wrong or left wrong; as, an error in writing or in printing; a clerical error.-a departing or deviation from the truth; falsity; false notion; wrong opinion; mistake; misapprehension.-a moral offense; violation of duty; a sin or transgression; iniquity; fault.-the difference between the approximate result and the true result; -- used particularly in the rule of double position.-the difference between an observed value and the true value of a quantity.-the difference between the observed value of a quantity and that which is taken or computed to be the true value; -- sometimes called residual error.-a mistake in the proceedings of a court of record in matters of law or of fact.-a fault of a player of the side in the field which results in failure to put out a player on the other side, or gives him an unearned base.