| 单词 | prevalence |
| 释义 | prevalence (once / 1653 pages) n Prevalence means there is a lot of something. If you get a bad grade on a paper for having a prevalence of typos, you need to proofread your work more carefully. The word prevalence comes from the Latin praevalere, meaning "condition of being widespread or general." The word is often used to describe a phenomenon that is widespread in a community, like the prevalence of a disease across a country. Prevalence is another word for "commonness." If there's a prevalence of thefts in your neighborhood, that means the likelihood of your house getting robbed is pretty high. WORD FAMILYprevail: prevailed, prevailing, prevails, prevalence, prevalent+/prevailing: prevailingly/prevalent: prevalently USAGE EXAMPLESIts prevalence in Africa is unknown, but anecdotally it is thought to be increasing there too. New York Times(Jan 02, 2017) Experts attribute the increase to a range of factors, including the prevalence of handguns and the lethality of those weapons. Washington Post(Dec 29, 2016) Recently reached by phone, O’Neil spoke about the prevalence of these “weapons of math destruction” across different industries. Los Angeles Times(Dec 30, 2016) 1n the quality of prevailing generally; being widespread he was surprised by the prevalence of optimism about the future Hypo|Hyper currency general acceptance or use generality the quality of being general or widespread or having general applicability 2n a superiority in numbers or amount Syn|Hyper preponderance figure, number the property possessed by a sum or total or indefinite quantity of units or individuals 3n (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 Hyper ratio the relative magnitudes of two quantities (usually expressed as a quotient) |
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