A subcontractor who may be a commercial carrier, but most often provides capacity (trucks and drivers, with or without trailers or chassis) to either commercial or private carriers under a contract for services.

(business) The business cycle from startup of operations to the profit; from obtaining the raw material, through designing and production, to the distribution and profits.

(mathematics) The sequence in which the various operations in a mathematical expression are to be evaluated.

Operated, or activated, by placing coins in a slot.

plural of operating system

A room in a hospital used for performing surgery (originally designed for operations in front of observers).

A room in a hospital used for performing surgical operations.

A showing of something — such as a variable, term, or object — in terms of the specific process or set of validation tests used to determine its presence and quantity.

(dated) A person who operates a radio transmitter on a ship or in an outpost, military unit, etc., in order to communicate over long distances.

(physics) Synonym of Hamiltonian