From Longman Dictionary of Contemporary Englishgrid computingˈgrid comˌputing noun [uncountable] a system of running a computer program using a lot of small computers that are connected together in order to do very complicated jobsFrom Longman Business Dictionarygrid computingˈgrid comˌputing COMPUTINGa system of running a computer program using a lot of small computers that are connected together in order to do very complicated jobs → computing