From Longman Dictionary of Contemporary Englishtravelling salesmanˌtravelling ˈsalesman British English, traveling salesman American English noun [countable] BOSELLsomeone who goes from place to place selling their company’s products
Examples from the Corpus
travelling salesman• I am slowly becoming a travelling salesman called Pete.• The only real hospital case was a travelling salesman who had been shot through the foot.From Longman Business Dictionarytravelling salesmanˌtravelling ˈsalesmanMARKETING someone whose job involves going from place to place, selling a company’s productsSYNcommercial traveller BrE → salesman