WordMate - 在线英语词典

prevalence 'prevәlәns

CET6

释义

n. 普遍, 流行, 广泛
[医] 流行, 盛行

英文释义

n. the quality of prevailing generally; being widespread
n. (epidemiology) the ratio (for a given time period) of the number of occurrences of a disease or event to the number of units at risk in the population

词形变化

复数: prevalences

BNC词频排名: 5,906 | 当代语料库词频排名: 7,455