Monte Carlo a resort in Monaco, forming one of the four communes of the principality; it is famous as a gambling resort and as the terminus of the annual Monte Carlo rally.
Monte Carlo method a technique in which a large quantity of randomly generated numbers are studied using a probabilistic model to find an approximate solution to a numerical problem that would be difficult to solve by other methods. It is named after Monte Carlo with reference to its gambling casino.

Monte Carlo Town on the Mediterranean coast. n Monaco. It was founded (1858) by Prince Charles III of Monaco. Today, it is a popular resort noted for its scenery and mild climate. The Casino is a great tourist attraction. Pop. (2002) 15,300.