ˈHarris ˌpoll BrE AmE noun [countable] trademark
an ↑ opinion poll (=a test to find out people's attitudes about something) carried out by Louis Harris Associates of New York, or one of their connected companies in Europe. They get their results by questioning a number of people who are chosen as being typical of the whole population:
A Harris poll in today's Times gives the Labour Party a 16-point lead over the Conservatives.