Definition of villus noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈvɪləs//
; NAmE NAmE//ˈvɪləs//
(pl. villi
BrE BrE//ˈvɪlaɪ//
; NAmE NAmE//ˈvɪlaɪ//
; BrE BrE//ˈvɪliː//
; NAmE NAmE//ˈvɪliː//
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any one of the many small thin parts shaped like fingers that stick out from some surfaces on the inside of the body (for example in the intestine ). Villi increase the area of these surfaces so that substances can be absorbed by the body more easily. Word Originearly 18th cent.: from Latin, literally ‘shaggy hair’.
See the Oxford Advanced American Dictionary entry: villus