An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Concept Breadcrumbs

Preferred Term:

periodicity

Definition:
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).
Concept Schemes:
NALT Core
NALT Full
Narrower Concepts:
Entry Terms:
  • cyclicity
  • bioperiodicity
URI:
https://lod.nal.usda.gov/nalt/17466
Download this Concept:
RDF/XMLCreated 2006-01-19, last modified 2017-04-19