Metre
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
The unit of measure in the "metric system" of weights and measurea It is a measure of length, being the ten-millionth part of the dlstance from the equator to the north pole, and equivalent to 39.37 inches. From this unit all the other denominations of measure, as well as of weight, are derived. The metric system was first adopted in France in 1795.