incidences
incidences — noun
- incidencessingular
- incidencesesplural
1. measured rates showing how often a disease, problem, or condition appears in par
measured rates showing how often a disease, problem, or condition appears in particular groups, places, or time periods.
Health officials tracked incidences of dengue fever across the island last summer.
incidences of [disease] across [place]
Christopher compared the incidences of asthma in two factory towns.
incidences of [condition] in [place]
Doctors reported rising incidences of heatstroke after the long power cuts.
A school survey found low incidences of flu in Noa's class.
- prevalence
focuses more on how widespread something is than on separate measured rates
- occurrence
broader and less technical; not usually used for disease-rate reporting
- frequency
general term for how often something happens, without the formal statistical tone
文法句型
incidences of [disease/problem]
high/low incidences
incidences in [place/group]
用法筆記
Used mainly in formal reports, especially in health or statistics. It usually compares how often a condition appears across different groups, places, or time periods.
常見錯誤
2. particular cases in which something happens, especially when a report or record
particular cases in which something happens, especially when a report or record counts them.
Several incidences of broken glass were reported after the concert.
several incidences of [problem]
The file records incidences of cheating during the final exam.
records incidences of [event]
Paloma spoke about two incidences of online bullying at her school.
Police reviewed earlier incidences of theft in the same apartment block.
- incidents
more common in everyday English, often for unwelcome events
- cases
broader and common in reports or records
- occurrences
formal and close in meaning, but less tied to official records
文法句型
incidences of [problem/crime]
several incidences of something
reported incidences of something
用法筆記
More formal than 'incidents' or 'cases' and usually followed by 'of' plus the thing that happened. Distinguish from sense 1: this sense counts separate events, not a measured rate.
常見錯誤
3. occasions when light, or another moving object, reaches and meets a surface.
occasions when light, or another moving object, reaches and meets a surface.
The textbook compares incidences of light on smooth and rough surfaces.
incidences of light on [surface]
During the lab, Yan noted two incidences of sunlight on the sensor.
two incidences of sunlight on [surface]
On the chart, three incidences of light are shown hitting the lens.
Different incidences of light on the window created bright lines indoors.
文法句型
incidences of light on [surface]
incidences on a surface
different incidences of light
用法筆記
Mostly used in physics or optics. In everyday English, people usually say that light hits or falls on a surface instead of using this noun.