prolactin
noun
pro·lac·tin
prō-ˈlak-tən 
: a protein hormone of the anterior lobe of the pituitary that induces lactation
Examples of prolactin in a Sentence
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And even certain medications could screw with your typical cycle, for instance antidepressants and antipsychotics (which, in a roundabout way, may pump up your levels of ovulation-blocking prolactin) and steroids, which mimic the cortisol release of a stress response.
—
Korin Miller, SELF, 31 Mar. 2025
During pregnancy, your body begins producing prolactin to stimulate the growth of mammary tissue in anticipation of breastfeeding.
—Meena Azzollini, Parents, 1 July 2024
There’s a range of treatments that can help reduce the prolactin and stop the milky discharge, including medication and surgery, and patients typically make a full recovery.
—Angela Haupt, TIME, 18 Oct. 2024
The body releases oxytocin and prolactin after orgasm.
—Lindsay Curtis, Verywell Health, 7 Oct. 2024
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Korin Miller, SELF, 31 Mar. 2025
During pregnancy, your body begins producing prolactin to stimulate the growth of mammary tissue in anticipation of breastfeeding.
—Meena Azzollini, Parents, 1 July 2024
There’s a range of treatments that can help reduce the prolactin and stop the milky discharge, including medication and surgery, and patients typically make a full recovery.
—Angela Haupt, TIME, 18 Oct. 2024
The body releases oxytocin and prolactin after orgasm.
—Lindsay Curtis, Verywell Health, 7 Oct. 2024
See All Example Sentences for prolactin
Cite this Entry
“Prolactin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prolactin. Accessed 15 Apr. 2025.
Copy CitationMedical Definition
prolactin
noun
pro·lac·tin
prō-ˈlak-tən
: a protein hormone of the adenohypophysis of the pituitary gland that induces and maintains lactation in the postpartum mammalian female
—abbreviation PRL
called also luteotropic hormone, luteotropin, mammotropin
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