From Longman Dictionary of Contemporary Englishturtlenecktur‧tle‧neck /ˈtɜːtlnek $ ˈtɜːr-/ noun [countable] DCCa type of sweater with a high, close-fitting collar that covers most of your neck → polo neck, v-neck
Examples from the Corpus
turtleneck• Cloud, a priest who wears a turtleneck.• She dressed either in blue-jeans with a black turtleneck top and black boots or in very short miniskirts.• I rub on soothing calamine lotion, then don a cotton turtleneck to keep myself from scratching.• Centre Line green silk suit, £930; yellow viscose knit turtleneck, £400; both by Gianni Versace.• Instead, I wanted to be Choo Choo, who wore a long turtleneck and spoke with a high monotone.• Bella Freud, a protege of Vivienne Westwood, unpicked the body's turtleneck, adding a white silk collar and cuffs.• Mike wore black leather biking trousers and a heavy seaman's turtleneck sweater. 