Phenomena and Processes

Periodicity

The tendency of a phenomenon to recur at regular intervals; in biological systems, the recurrence of certain activities (including hormonal, cellular, neural) may be annual, seasonal, monthly, daily, or more frequently (ultradian).

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The tendency of a phenomenon to recur at regular intervals; in biological systems, the recurrence of certain activities (including hormonal, cellular, neural) may be annual, seasonal, monthly, daily, or more frequently (ultradian).

MeSH Record

Classification

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MeSH Record

Synonyms

13 entry terms
  • Biological Rhythms
  • Bioperiodicity
  • Biorhythms
  • Cyclicity
  • Rhythmicity
  • Biological Rhythm
  • Bioperiodicities
  • Biorhythm
  • Cyclicities
  • Periodicities
  • Rhythm, Biological
  • Rhythmicities
  • Rhythms, Biological

MeSH Record

Indexing Annotation

coordinate with specific disease for periodically occurring disease; do not confuse with PERIODIC DISEASE see FAMILIAL MEDITERRANEAN FEVER

MeSH Hierarchy

Tree Numbers

  1. G01w.910w.645
  2. G07.180.562

AMA Style

References

  1. National Library of Medicine. Periodicity. Medical Subject Headings (MeSH). 2026. Unique ID D010507. http://id.nlm.nih.gov/mesh/2026/D010507
  2. Periodicity. In: Wikidata. https://www.wikidata.org/wiki/Q443564