From Longman Dictionary of Contemporary Englishpolo neckˈpolo neck noun [countable] British EnglishDCC a shirt or sweater that has a high collar that folds down and fits closely around the neck SYN turtleneck American English a polo-neck sweater
Examples from the Corpus
polo neck• He wore an anorak over a wool sweater with a polo neck and he wore tough cord jeans and walking boots. 