| 释义 |
incidence
incidencethe rate or range of occurrence or influence of something: There is a high incidence of lung cancer in people who smoke.
Not to be confused with:incidents – individual events; a distinct bit of action; occurrences: There were several disturbing incidents during the peace march.in·ci·dence I0081200 (ĭn′sĭ-dəns)n.1. The rate or extent of occurrence or effect: a high incidence of malaria in the tropics.2. a. Usage Problem A specific event; instance or incident: fewer incidences of fraud after the regulations were enforced.b. The action, fact, or instance of occurring: did not expect criticism and was surprised by its incidence.3. Physics a. The arrival of radiation or a projectile at a surface.b. Angle of incidence.Usage Note: The singular noun incidence usually refers to the rate at which something happens, as in The city has taken measures to reduce the incidence of vandalism.In this sense, it is used in the plural only in relatively rare situations when several rates are being discussed (for example, incidences of heart disease, cancer, and stroke). However, incidence is often confused with the similar-sounding words incident and instance, which refer not to a rate but to a discrete event and are pluralized as incidents (which sounds exactly like incidence) and instances (which has an ending similar to incidences). This confusion often leads people to use incidences as a plural referring to a number of events, as in the sentence Incidences of religious intolerance are on the rise, creating tensions within many communities. In our 2014 Usage Survey, 74 percent of Panelists found this sentence unacceptable, and many Panelists remarked that incidences should be replaced with incidents or instances. The same sentence was unacceptable to 67 percent of Panelists in 2002, suggesting that there has been no increase in acceptability of this usage. A few Panelists remarked that this sentence might be acceptable if it were referring to rates of vandalism in several different places. A less ambiguous sentence (The election was marred by a few violent incidences) was rejected by 80 percent of the Panel. In this sentence, incidents is the better choice. incidence (ˈɪnsɪdəns) n1. degree, extent, or frequency of occurrence; amount: a high incidence of death from pneumonia. 2. the act or manner of impinging on or affecting by proximity or influence3. (General Physics) physics the arrival of a beam of light or particles at a surface. See also angle of incidence4. (Mathematics) geometry the partial coincidence of two configurations, such as a point that lies on a circlein•ci•dence (ˈɪn sɪ dəns)
n. 1. the rate or range of occurrence or influence of something. 2. occurrence; happening. 3. a. the striking of a ray of light, beam of electrons, etc., on a surface, or the direction of striking. b. angle of incidence (def. 1). [1375–1425] Thesaurus| Noun | 1. | incidence - the relative frequency of occurrence of somethingrelative incidencerelative frequency, frequency - the ratio of the number of observations in a statistical category to the total number of observationsmorbidity - the relative incidence of a particular disease | | 2. | incidence - the striking of a light beam on a surface; "he measured the angle of incidence of the reflected light"optical phenomenon - a physical phenomenon related to or involving light |
incidencenoun prevalence, frequency, occurrence, rate, amount, degree, extent The incidence of breast cancer increases with age.Translationsincidence
incidence1. Physics the arrival of a beam of light or particles at a surface 2. Geometry the partial coincidence of two configurations, such as a point that lies on a circle incidence The angular distance between the chord and a line drawn longitudinally through the fuselage. It is determined during the design of the airplane and is the angle at which the wing is attached to the fuselage. Hence, it is a fixed angle. Also called riggers' angle of incidence.incidence
incidence [in´sĭ-dens] the rate at which a certain event occurs, as the number of new cases of a specific disease occurring during a certain period in a population at risk, in contrast to prevalence.in·ci·dence (in'si-dens), Do not confuse this word with prevalence.1. The number of specified new events, for example, people falling ill with a specified disease, during a specified period in a specified population. 2. In optics, intersection of a ray of light with a surface. [L. incido, to fall into or upon, to happen] incidence Epidemiology 1. The number of new cases–in the form of a count or rate of a disease or condition, often an infection diagnosed each yr–classically measured as an attack rate.2. The rate of occurrence of new cases of a disease or condition in a population at risk during a given period of time, usually 1 yr.in·ci·dence (in'si-dĕns) 1. The number of specified new events, e.g., people falling ill with a specified disease, during a specified period in a specified population. 2. optics Intersection of a ray of light with a surface. incidence The number of cases of an event, such as a disease, occurring in a particular population during a given period. Incidence is usually expressed as so many cases per 1000, or per 100,000, per year. Compare PREVALENCE.incidence1. The intersection of a ray of light with an optical surface. 2. The number of new cases of a specific disease or condition occurring during a specific period of time (e.g. 1 year) divided by the population at risk during that period. Example: the incidence of keratoconus in Olmsted County, Minnesota was found to be 2 cases per 100 000 population a year. See prevalence.in·ci·dence (in'si-dĕns) Do not confuse this word with prevalence.Number of specified new events, during a specified period in a specified population. Patient discussion about incidenceQ. Is it possible to get ADHD from suffering a traumatizing incident? lately, after the death of my Grandmother. I have been increasingly getting the symptoms of ADHD. I have suffered from some of the symptoms during my childhood, but now they are increasingly occurring. And I am finding it really hard to listen to Teachers, follow instructions and do coursework. Is it possible this was caused by the death of my grandmother?A. I think you should look up depression. ADHD is something that does not “pop”, more reasonable to think is that you suffer from a slight depression. Check it out and see if it fits :
http://www.nlm.nih.gov/medlineplus/depression.html
Q. Is the incidence of breast cancer growing everyday? I have a small lump in my breast. My friends suggested me to have a regular mammogram as a precautionary step. My friend’s family women are having it yearly. But I am confused…Why is the need to go for mammogram without any problem. I think routine medical check-up is sufficient. Is the incidence of breast cancer growing everyday?A. NO….its not increasing. I had my breast cancer found in early stages, 6 month back. I was lucky. You know why—I had my mammogram done just by fear of having it in future. In order to avoid any I did and was very lucky as it was found and soon cured. Most female take it as precaution and you should too. Apart from mammogram you must have clinical breast examination. More discussions about incidenceincidence
Related to incidence: Incidence matrix, Normal incidenceSynonyms for incidencenoun prevalenceSynonyms- prevalence
- frequency
- occurrence
- rate
- amount
- degree
- extent
Synonyms for incidencenoun the relative frequency of occurrence of somethingSynonymsRelated Words- relative frequency
- frequency
- morbidity
noun the striking of a light beam on a surfaceRelated Words |