(n)(statistics) law stating that a large number of items taken at random from a population will (on the average) have the population statistics, Syn.law of large numbers
[ After Leopoldo Nobili, an Italian physicist who first described them in 1826. ] (Physics) Colored rings formed upon a metal plate by the electrolytic disposition of copper, lead peroxide, etc. They may be produced by touching with a pointed zinc rod a silver plate on which is a solution of copper sulphate. [ Webster 1913 Suppl. ]