Definition of frequency
1 : the fact or condition of occurring frequently the frequency of automobile accidents
2a : the number of times that a periodic function repeats the same sequence of values during a unit variation of the independent variableb : the number, proportion, or percentage of items in a particular category in a set of data
3 : the number of repetitions of a periodic process in a unit of time: such asa : the number of complete alternations (see alternation 1) per second of an alternating currentb : the number of complete oscillations (see oscillation 3) per second of energy (such as sound or electromagnetic radiation) in the form of waves
Examples of frequency in a Sentence
the alarming frequency of serious automobile accidents caused by young drivers
The frequency of student errors was frustrating to the young teacher.
Our visits decreased in frequency.
Errors were occurring with increasing frequency.
a sound wave of high frequency
waves having very different frequencies from one another
a current having a frequency of 60 hertz
a radio frequency of 30 megahertz
Recent Examples of frequency from the Web
People with some frequency were snatched off rocks by waves and drowned.
The Musical on Saturday, July 29th @ 3:00pm - City Theatre (2301 Woodward Ave, Detroit, MI 48201) Approximate retail value (ARV): $158 per prize Entry frequency & dates: entries accepted daily from 7/6/2017 through 11:59pm 7/25/2017.
The nice thing about this is that nearly every molecule, including molecules that have different isotopes, has different characteristic vibrational frequencies.
The frequency of those radio waves corresponds to an electron's energy, a signal that Robertson and his colleagues plan to take advantage of.
The reason: the NFL has had a deal in place since 2014 with Zebra Technologies, which uses radio-frequency identification tags to track the players’ location, speed and acceleration during games.
The ordinance was invoked with increasing frequency.
Collision claim frequency refers to the number of claims filed divided by the number of insured vehicle years.
From other Ohio families with children who have epilepsy, the Bentons learned that marijuana products such as patches and oils has been shown to reduce the frequency and severity of seizures.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'frequency.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of frequency
FREQUENCY Defined for Kids
Definition of frequency for Students
1 : frequent repetition Rain fell with frequency.
2 : rate of repetition She went with increasing frequency.
3 : the number of waves of sound or energy that pass by a point every second Tune the stereo to receive a specific frequency of radio waves.
Medical Definition of frequency
1: the number of individuals in a single class when objects are classified according to variations in a set of one or more specified attributes
2: the number of repetitions of a periodic process in a unit of time
Seen and Heard
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