( n. )
A mass of metal in one side of a driving wheel or fly wheel, to balance the weight of a crank pin, etc., on the opposite side of the wheel
( n. )
A mass of metal in one side of a driving wheel or fly wheel, to balance the weight of a crank pin, etc., on the opposite side of the wheel
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012