From Longman Business DictionaryLBED_19_aassembly lineasˈsembly line (also production line)MANUFACTURING a method of making goods, especially cars or other machines, in a factory. It involves the product moving down a line of workers who each add a different part or do a different joba highly automated production lineMost blue-collar workers will not easily regain jobs on the assembly line.The first of the new cars has just rolled off the production line. → line