Definition of progesterone in English:

Share this entry


Pronunciation: /prəˈdʒɛstərəʊn/


[mass noun] Biochemistry
A steroid hormone released by the corpus luteum that stimulates the uterus to prepare for pregnancy.
Example sentences
  • You stick it on your skin and it releases two hormones - oestrogen and progesterone.
  • During pregnancy, the amount of two female hormones, oestrogen and progesterone, increases.
  • The ovaries also produce the female hormones, oestrogen and progesterone.


1930s: blend of progestin and the German synonym Luteosteron (from corpus luteum + sterol).

For editors and proofreaders

Line breaks: pro|ges¦ter|one

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.