Organism Function
menarche Audio
men·ar·che [ muh-nahr-kee, me- ]
Subclass of:
Puberty
Definitions related to menarche:
  • The beginning of the menstrual cycle; the first menstrual cycle in an individual.
    Gene Ontology Dictionary
    Gene Ontology Consortium, 2021
  • The first MENSTRUAL CYCLE marked by the initiation of MENSTRUATION.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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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.