angle of incidence
What is the direction of incidence of the X-rays on the surface?
They measured the incidence angle of the laser beam in respect to the surface.

SMART Vocabulary: related words and phrases

Physics: optics, microscopy & lasers
anti-reflection
anti-reflective
chromatic aberration
concentrator
converging lens
eyepiece
field glasses
non-reflecting
opera glasses
optical density
optics
polarization
polarize
polarized
reflection
reflective
refract
spotting scope
spyglass
transparency

incidence | American Dictionary

incidence
noun

incidencenoun (RATE)

[ U ]us/ˈɪn·sə·dəns, -ˌdens/
the rate at which something happens:
There’s been an increased incidence of cancer in the area.

incidencenoun (SURFACE)

[ C ]us/ˈɪn·səd·əns, -səˌdens/
the falling or hitting of an object or beam of energy, such as light, on a surface
 angle of incidencephysics
The angle of incidence is the angle that a beam of light or other energy hitting a surface makes with a line vertical to that surface.

incidence | Business English

incidence
noun[ S ]
uk /ˈɪnsɪdəns/us
the rate at which something happens:
increase/decrease/reduce the incidence of sthWe intend to reduce the incidence of loan defaults by restructuring payments.
The incidence of financial fraud among companies having an audit decreased threefold in the last ten years.
TAX (alsoincidence of taxation)
the financial effect of taxes on people or companies, especially taxes not directly paid by them:
High business property taxes added to the tax incidence on consumers by increasing the costs of goods and services.
Although mean incomes increased by 3.5% when the incidence of taxation is accounted for it leads to a 2.4% fall in mean income.

Examples of incidence

incidence
From the 1930s to the 1950s the incidence of walking to work declined rapidly, but the use of buses and bicycles increased substantially.
This, however, would be unlikely to account for all of the observed rise and it is likely that there is a true increase in incidence.
Unadjusted risk ratios for the incidence of schizophrenia were first calculated separately for each of these explanatory variables.
The mid-point year (1993) population was used to calculate the age specific incidence rate.
The stroke incidence and survival spreadsheets include categorization by both "first-ever" and "recurrent stroke" rates for the three treatment pathways.
The increased incidence of systemic disease, plus a reduced physiological reserve, increases the risk of more serious consequences from bleeding.
The incidence of late arrhythmia in other reported series varies with the length of follow-up and the investigative technique.
The incidence of stenotic lesions in 180 patients having more than three series of coronary angiography.
Balanced against this, is the higher incidence of transannular repair, and possibly higher morbidity and mortality.
The incidence of accusative clitics is very low before month 20 and it increases dramatically afterwards.
It can be assumed that adults prepare food for children (who have the highest incidence of salmonellosis) and possibly the elderly.
In addition, the incidence of such taxes are particularly difficult to determine since they generally influence the relative prices of the commodities taxed.
These patients are attending a first-episode programme that is available to the whole community and that most likely includes the majority of potential incidence cases.
Recall that the theoretical relationship between efficiency concerns and the incidence of non-partisan cabinet appointments is counter-intuitively negative.
The high incidence of complications was related to excessive shunt, especially with the prostheses sutured on the ascending aorta or on the brachiocephalic artery.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.

Collocations withincidence

incidence

These are words often used in combination with incidence.

Click on a collocation to see more examples of it.

actual incidence
Such documentary evidence forms an imperfect measure of the actualincidence of corruption, since many incidents are never discovered or prosecuted, especially in corrupt environments.
annual incidence
Annualincidence rates ranged from 0.002 to 0.012 for males and from 0.003 to 0.024 for females, depending on age.
cumulative incidence
To compare the cumulativeincidence of brain metastases as the first site of breast cancer recurrence.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
See all collocations with incidence