From Longman Business Dictionarytest marketˈtest ˌmarket [countable]MARKETING1the process of introducing a new product or service to one or more areas in a country to find out whether people are likely to buy it when it becomes more widely availableAnother shortcut is to skip the traditional consumer test market and rely solely on laboratory research.preliminarytest-market results of its new line of stuffed toys2a particular area of a country used to test a new product or serviceGrocers in the test markets say they’re willing to give the new convenience foods a chance. → markettest-marketˈtest-ˌmarket verb [transitive]MARKETING to introduce a new product or service in a small area of a country to find out whether people are likely to buy it when it becomes more widely availableThe brewery will test-market a new light beer in six states beginning next week.The low-fat eggs, which were test-marketed in Cincinnati probably won’t be back on the shelves for some time.