noun
: an element or condition related to a unit of product or to an activity or to a service for which money must be spent (as raw material, direct labor, and burden)
noun
: an element or condition related to a unit of product or to an activity or to a service for which money must be spent (as raw material, direct labor, and burden)
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012