Organism Function
ultradian rhythm
ul·tra·di·an rhythm
Subclass of:
Periodicity
Definitions related to ultradian rhythm:
  • A biological rhythm with a period shorter than 24 hours.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • The specific actions or reactions of an organism that recur with a regularity more frequent than every 24 hours.
    Gene Ontology Dictionary
    Gene Ontology Consortium, 2021
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.