Organism Function
estrous cycle
Subclass of:
Reproductive Physiological Phenomena
Definitions related to estrous cycle:
  • A type of ovulation cycle, which occurs in most mammalian therian females, where the endometrium is resorbed if pregnancy does not occur.
    Gene Ontology Dictionary
    Gene Ontology Consortium, 2021
  • The period of cyclic physiological and behavior changes in non-primate female mammals that exhibit ESTRUS. The estrous cycle generally consists of 4 or 5 distinct periods corresponding to the endocrine status (PROESTRUS; ESTRUS; METESTRUS; DIESTRUS; and ANESTRUS).
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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