| 释义 |
prev·a·lence
\ˈprev(ə)lən(t)s\ noun
also prev·a·len·cy \-nsē, -si\
(plural prevalences also prevalencies)
Etymology: prevalence from French prévalence superiority, from Late Latin praevalentia greater power, from Latin praevalent-, praevalens (present participle of praevalēre to be more able, prevail) + -ia -y; prevalency from Late Latin praevalentia
1. : the quality, condition, or fact of being prevalent : frequent occurrence : general or widespread acceptance, usage, or dissemination
< the prevalence of burglaries >
< prevalence of radios >
< prevalence of rumors >
2. : the degree to which something (as a disease, an infective agent) is prevalent; sometimes : the percent of a population being studied that is affected with a particular disease at a given time |