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NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Research, Technology, Methods > biological properties and phenomena > biological rhythms > circadian rhythm
Preferred Term:

circadian rhythm

Definition:
The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs or environmental and physiological stimuli.
Concept Schemes:
NALT Full
NALT Core
Broader Concept:
biological rhythms
Narrower Concepts:
Related Concepts:
Entry Terms:
  • diurnal rhythm
URI:
https://lod.nal.usda.gov/nalt/17465
Download this Concept:
RDF/XMLCreated 2006-01-19, last modified 2018-01-18
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