Hormone
relaxin Audio
re·lax·in [ ri-lak-sin ]
Subclass of:
Corpus Luteum Hormones; peptide hormone
Definitions related to relaxin:
  • A water-soluble polypeptide (molecular weight approximately 8,000) extractable from the corpus luteum of pregnancy. It produces relaxation of the pubic symphysis and dilation of the uterine cervix in certain animal species. Its role in the human pregnant female is uncertain. (Dorland, 28th ed)
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Peptide hormone secreted by the corpus luteum which relaxes the pubic symphysis and dilates the uterine cervix in preparation for birth.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • Relaxin, in common usage, the two-chain peptide hormone H2 relaxin, which belongs to the relaxin peptide family in the insulin superfamily of hormones. The relaxin peptide family includes six other related hormones: the insulin-like peptides H1 relaxin, INSL3, INSL4, INSL5, INSL6, and INSL7 (also...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2025
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