progesterone
noun
pro·ges·ter·one
prō-ˈje-stə-ˌrōn 
: a female steroid sex hormone C21H30O2 that is secreted by the corpus luteum to prepare the endometrium for implantation and later by the placenta during pregnancy to prevent rejection of the developing embryo or fetus
also
: a synthetic steroid resembling progesterone in action
Examples of progesterone in a Sentence
Recent Examples on the Web
During a typical menstrual cycle, your ovaries produce hormones such as estrogen and progesterone that prepare your body for pregnancy.
—
Corey Whelan, Verywell Health, 4 Nov. 2024
When a woman starts menstruating, her ovaries release estrogen and progesterone.
—Kaitlin Sullivan, NBC News, 19 Oct. 2024
Heavy periods are caused by the hormonal fluctuations that occur as the ovaries start producing less estrogen and progesterone.
—Sandra Rose Salathe, Flow Space, 25 Sep. 2024
The exact cause of PMDD is unknown, but it may be linked to an abnormal reaction to the natural rise and fall of estrogen and progesterone during the menstrual cycle that causes a serotonin deficiency in the brain.
—Alyssa Goldberg, USA TODAY, 10 Oct. 2024
See all Example Sentences for progesterone 
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Corey Whelan, Verywell Health, 4 Nov. 2024
When a woman starts menstruating, her ovaries release estrogen and progesterone.
—Kaitlin Sullivan, NBC News, 19 Oct. 2024
Heavy periods are caused by the hormonal fluctuations that occur as the ovaries start producing less estrogen and progesterone.
—Sandra Rose Salathe, Flow Space, 25 Sep. 2024
The exact cause of PMDD is unknown, but it may be linked to an abnormal reaction to the natural rise and fall of estrogen and progesterone during the menstrual cycle that causes a serotonin deficiency in the brain.
—Alyssa Goldberg, USA TODAY, 10 Oct. 2024
See all Example Sentences for progesterone
Dictionary Entries Near progesterone
Cite this Entry
“Progesterone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/progesterone. Accessed 22 Nov. 2024.
Copy CitationKids Definition
progesterone
noun
pro·ges·ter·one
prō-ˈjes-tə-ˌrōn
: a hormone that is produced by the corpus luteum and causes the uterus to change so that it provides a suitable environment for a fertilized egg
Medical Definition
progesterone
noun
pro·ges·ter·one
prō-ˈjes-tə-ˌrōn
: a female steroid sex hormone C21H30O2 that is secreted by the corpus luteum to prepare the endometrium for implantation and later by the placenta during pregnancy to prevent rejection of the developing embryo or fetus
also
: a synthetic steroid resembling progesterone in action
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