1. Noun. A progestogen hormone. ¹
¹ Source: wiktionary.com
1. 17 alpha-hydroxypregn-4-en-20-yn-3-one. A synthetic steroid hormone with progestational effects. Pharmacological action: progestational hormones, synthetic. Chemical name: Pregn-4-en-20-yn-3-one, 17-hydroxy-, (17alpha)- (12 Dec 1998)
