Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A female hormone secreted by the corpus luteum that helps soften the cervix and relax the pelvic ligaments in childbirth.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A peptide hormone of the insulin superfamily.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

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

Etymologies

relax +‎ -in (Wiktionary)

Examples

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