noun
: a system of tolerances and allowances as applied to cylindrical mating surfaces having for its basis unilateral holes and involving measurement of the high and low limits of tolerance in one direction from the basic size
noun
: a system of tolerances and allowances as applied to cylindrical mating surfaces having for its basis unilateral holes and involving measurement of the high and low limits of tolerance in one direction from the basic size
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012