Incidence | Mean of incidence in English Dictionary

/ˈɪnsədəns/

• Noun
• the number of times something happens or develops
1. The drug has been linked with a higher incidence of certain cancers. [=the drug seems to cause certain cancers; people who take the drug seem to be more likely to get certain cancers]
2. an increased incidence of diabetes
3. a high/low incidence of criminal behavior
4. a disease with an incidence of one in 100,000 [=a disease that affects one person out of every 100,000]
• the angle at which a ray (such as a ray of light) hits a surface
1. the angle of incidence