MeSH definition : Saturated derivatives of the steroid pregnane. The 5-beta series includes PROGESTERONE
and related hormones; the 5-alpha series includes forms generally excreted in the
urine.;
Saturated derivatives of the steroid pregnane. The 5-beta series includes PROGESTERONE
and related hormones; the 5-alpha series includes forms generally excreted in the
urine.