AskDefine | Define periodicity

Dictionary Definition

periodicity n : the quality of recurring at intervals [syn: cyclicity]

User Contributed Dictionary



From périodicité


  1. recurrence of a woman's periods; menstruation.
  2. The quality of being periodic; tendency to recur at regular intervals.
  3. The quality of a function with a repeated set of values at regular intervals.

Related terms


property of being periodic

Extensive Definition

Periodicity is the quality of occurring at regular intervals or periods (in time or space) and can occur in different contexts:
  • A clock marks time at periodic intervals.
  • A metronome ticks at periodic intervals of time.
  • A publication published at periodic intervals can be called a "periodical", for example a magazine.
  • In mathematics, a function whose output contains values that repeat periodically is called a periodic function.
  • In chemistry, the periodic table is a table which classifies the chemical elements by means of the periodicity of their chemical properties.
  • In physics, period is the number of cycles as a result of time (time/cycle). The amount of time it takes to complete one full revolution. Period is also the inverse of frequency.
  • In music theory, periodicity is described as "predictability gives rise to expectations".
  • Standing waves crest at periodic intervals of distance.
  • In finance, the periodicity of a loan describes the interval between payments.
The measure of periodicity in time is frequency which has the metric units of Hertz.

See also

periodicity in German: Periodizität
periodicity in Dutch: Periodiek (tijd)
periodicity in Russian: Периодичность

Synonyms, Antonyms and Related Words

Indian file, alternation, annual period, array, articulation, bank, baseball season, basketball season, beat, buzz, catena, catenation, chain, chain reaction, chaining, cold season, concatenation, concert season, connection, consecution, continuum, course, cycle, cyclicalness, descent, drone, dry season, endless belt, endless round, file, filiation, fluctuation, football season, frequency, frequency band, frequency spectrum, gamut, gradation, harmonic motion, hum, intermittence, intermittency, libration, line, lineage, meter, monotone, nexus, nutation, off season, oscillation, pendulation, pendulum, pendulum motion, period, periodicalness, piston motion, plenum, powder train, progression, pulsation, queue, rainy season, range, rank, reappearance, recurrence, regular wave motion, reoccurrence, resonance, resonance frequency, reticulation, return, rhythm, rotation, round, routine, row, run, scale, season, seasonableness, seasonality, sequence, series, single file, social season, spectrum, string, succession, swath, the season, thread, tier, time of year, train, undulation, vacillation, vibrancy, vibratility, vibration, wavering, windrow
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