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frequency
[ free-kwuhn-see ]
noun
- Also frequence. the state or fact of being frequent; frequent occurrence:
We are alarmed by the frequency of fires in the neighborhood.
Synonyms: , ,
- rate of occurrence:
The doctor has increased the frequency of his visits.
- Physics.
- the number of periods or regularly occurring events of any given kind in unit of time, usually in one second.
- the number of cycles or completed alternations per unit time of a wave or oscillation. : F; : freq.
- Mathematics. the number of times a value recurs in a unit change of the independent variable of a given function.
- Statistics. the number of items occurring in a given category.
frequency
/ ˈڰːəԲɪ /
noun
- the state of being frequent; frequent occurrence
- the number of times that an event occurs within a given period; rate of recurrence
- physics the number of times that a periodic function or vibration repeats itself in a specified time, often 1 second. It is usually measured in hertz ν
- statistics
- the number of individuals in a class ( absolute frequency )
- the ratio of this number to the total number of individuals under survey ( relative frequency )
- ecology
- the number of individuals of a species within a given area
- the percentage of quadrats that contains individuals of a species
frequency
- In physics , the number of crests of a wave that move past a given point in a given unit of time. The most common unit of frequency is the hertz ( Hz ), corresponding to one crest per second. The frequency of a wave can be calculated by dividing the speed of the wave by the wavelength . Thus, in the electromagnetic spectrum , the wavelengths decrease as the frequencies increase, and vice versa.
Other Word Forms
- ԴDz·ڰ·ܱԳ noun
- ԴDz·ڰ·ܱ· noun
- ··ڰ·ܱ· noun
- ܲ··ڰ·ܱ· noun plural underfrequencies
Word History and Origins
Origin of frequency1
Word History and Origins
Origin of frequency1
Example Sentences
"When a big company detects that the frequency is moving out of their tolerance, they can go offline to protect their equipment," said Prof Hannah Christensen at the University of Oxford.
Islanders in the Outer Hebrides say their lives are being disrupted by a mysterious low frequency humming sound that can be heard day and night.
Asked whether the contraption could, for instance, disrupt drone frequencies and force them to return to their bases, he replied mysteriously: "Maybe, among other things."
However, more fish require more suitable habitat, which is lacking in Southern California — in part due to drought and the increased frequency of devastating wildfires.
As our climate heats up, primarily because humans continue to burn fossil fuels, that increases the frequency and severity of natural disasters like wildfires and hurricanes.
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