villus
noun [ C usually plural ] anatomy specialized uk/ˈvɪl.əs/ us/ˈvɪl.əs/ villi uk/ˈvɪl.aɪ/ us
（小肠内表皮上帮助营养吸收的）绒毛;长绒毛
one of many very small finger-like parts that are found on the inside surface of the small intestine and help food to be absorbed