progesterone vs progestin

progesterone and progestin both are nouns.

Word	Noun	Adjective	Verb	Adverb
progesterone	Yes	No	No	No
progestin	Yes	No	No	No

As nouns, progestin is a hypernym of progesterone; that is, progestin is a word with a broader meaning than progesterone:

progesterone: a steroid hormone (trade name Lipo-Lutin) produced in the ovary; prepares and maintains the uterus for pregnancy
progestin: any of a group of steroid hormones that have the effect of progesterone

Other hypernyms of progesterone include progestogen.

progesterone (noun)	progestin (noun)
a steroid hormone (trade name Lipo-Lutin) produced in the ovary; prepares and maintains the uterus for pregnancy	any of a group of steroid hormones that have the effect of progesterone