# Dictionary Definition

recurrence n : happening again (especially at
regular intervals); "the return of spring" [syn: return]

# User Contributed Dictionary

## English

### Etymology

Ultimately recurrere.### Noun

- A return of symptoms as part of the natural progress of a disease.
- The instance of recurring; frequent occurrence.
- Recourse.
- Return or reversion to a certain state.

#### Related terms

#### Translations

a return of symptoms as part of the natural
progress of a disease

- Finnish: uusiutuma, uusiutuminen

the instance of recurring; frequent
occurrence

recourse

return or reversion to a certain state

- ttbc French: récurrence
- ttbc German: Rekurrenz

# Extensive Definition

Recurrence and recurrent may refer to:

- Recurrence relation, an equation which defines a sequence recursively
- Poincaré recurrence theorem, Henri Poincaré's theorem on dynamical systems
- Recurrence plot, a statistical plot that shows a pattern that re-occurs
- Recurrence period density entropy, an information-theoretic method for summarising the recurrence properties of a dynamical systems
- Recurrent neural network, a special artificial neural network
- Recurrent rotation, a term used in contemporary hit radio for frequently aired songs

recurrence in German: Rekurrenz

recurrence in French: Récurrence

# Synonyms, Antonyms and Related Words

Indian file, alternation, array, articulation, atavism, backset, backward deviation,
bank, beat, buzz, catena, catenation, chain, chain reaction, chaining, concatenation, connection, consecution, continuum, course, cycle, cyclicalness, descent, doubling, drone, duplication, echo, endless belt, endless round,
falling back, file,
filiation, frequency, gamut, gradation, hum, imitation, intermittence, intermittency, lapse, line, lineage, meter, monotone, nexus, oscillation, pendulum, pendulum motion,
periodicalness,
periodicity, piston
motion, plagiarism,
plenum, powder train,
progression,
pulsation, queue, quotation, range, rank, reappearance, rebirth, recrudescence, redoubling, reduplication, reecho, regression, regular wave
motion, regurgitation, reincarnation, relapse, renewal, reoccurrence, repetition, reproduction, resumption, reticulation, return, reversal, reverse, reversion, rhythm, rotation, round, routine, row, run, scale, seasonality, sequence, series, setback, single file, spectrum, string, succession, swath, thread, throwback, tier, train, undulation, windrow