/ˈmɪsltəʊ ||; ˈmɪsḷˌto/noun [U] a plant with white berries and green leaves. Mistletoe grows on trees. 槲寄生（一种寄生于树上的常绿植物，结白色浆果） Mistletoe is used as a decoration inside houses in Britain at Christmas time. There is a tradition of kissing people ‘under the mistletoe’. 英国人在圣诞节时把槲寄生放在屋内作为装饰。根据传统，人们在槲寄生下面接吻。