Member of a family of hormones, based on the 21-carbon pregnane skeleton, involved in maintaining gestation and regulating the ovarian cycle.
See also: progesterone, progestin
Source:
PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 796 (https://doi.org/10.1515/pac-2015-1202)