Definition

1. Noun:
   • A hormone: A specific polypeptide hormone produced and secreted primarily by the corpus luteum of the ovary in the final stages of pregnancy. Its primary function is to cause relaxation of the pelvic ligaments and soften the cervix, thereby preparing the mother's body for the process of labor and childbirth.

Usage Examples

• Noun:
  • The doctor explained that relaxin helps prepare the body for delivery.
  • Increased levels of relaxin in the third trimester cause joint looseness.

Advanced Usage

• Scientific/Medical Context: "Relaxin" is primarily used in endocrinology, obstetrics, and physiology. It may also be studied in relation to its effects on other connective tissues.
  • Research is investigating the potential therapeutic uses of relaxin for treating fibrotic diseases.

Variants and Related Words

• Relaxin-like peptide (RLN): Refers to the family of hormones to which relaxin belongs.
• Corpus luteum: The endocrine structure that secretes relaxin during pregnancy.

Synonyms

• Hormone: (General term) A regulatory substance produced in an organism.
• Polypeptide hormone: (Specific class) A hormone whose structure is a chain of amino acids.

Notes on Meaning

• This is a highly specialized scientific/medical term with one primary meaning related to reproductive biology. It is not used in everyday general conversation.

Noun

1. hormone secreted by the corpus luteum during the last days of pregnancy; relaxes the pelvic ligaments and prepares the uterus for labor