Definition of relaxin
: a sex hormone of the corpus luteum that facilitates birth by causing relaxation of the pelvic ligaments
Recent Examples of relaxin from the Web
Her feet and hips were more mobile, too -- a consequence of a hormone called relaxin which loosens ligaments and tendons in preparedness for giving birth.
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First Known Use of relaxin
Learn More about relaxin
Britannica.com: Encyclopedia article about relaxin
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