one of five equal groups into which a set of things can be divided according to the distribution of a particular variable 五分位数;五分位值 men in the first quintile of weight (= the heaviest 20% of men) 体重在第一个五分位组的男性(即最重的 20% 男性)
Word Originearly 17th cent.: from Latin quintilis (mensis) ‘fifth month, July’, from quintus ‘fifth’.