different between recurrence vs periodicity

English

Etymology

recurrent +? -ence, cognate with Latin recurrentia, from recurr?ns (“returning back, recurring”), form of recurr? (“I return, I recur”) (English recur).

Noun

recurrence (countable and uncountable, plural recurrences)

1. Return or reversion to a certain state.
2. The instance of recurring; frequent occurrence.
   • I. Taylor

     I shall insensibly go on from a rare to a frequent recurrence to the dangerous preparations.

3. A return of symptoms as part of the natural progress of a disease.
4. Recourse.

Synonyms

• (instance of recurring): reoccurrence; see also Thesaurus:reoccurrence

Hyponyms

• recrudescence
• reemergence
• resurgence

Related terms

• recur
• recurrent
• recursive
• recursivity
• recursion

Translations

References

• Douglas Harper (2001–2021) , “recurrence”, in Online Etymology Dictionary

English

Etymology

From French périodicité.

Morphologically periodic +? -ity

Noun

periodicity (countable and uncountable, plural periodicities)

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

Related terms

• period
• periodic

Translations