1
: a product of living cells that circulates in body fluids (such as blood) or sap and produces a specific often stimulatory effect on the activity of cells usually remote from its point of origin
also
: a synthetic substance that acts like a hormone
2
Examples of hormone in a Sentence
Recent Examples on the Web
For instance, some bacteria might influence how your body stores fat, regulate your appetite hormones (like leptin and ghrelin), and regulate your blood sugar levels.8
5.
—
Qin Rao, Verywell Health, 4 June 2025
The former could be a side effect of a low-dose birth control pill or even ovulation (when a shift in hormones can cause a bit of your endometrium to break off early), for instance.
—Erica Sloan, SELF, 3 June 2025
While discussion about affirming care focuses on puberty blockers, hormones and surgeries, just using the right pronouns for someone can be important affirmation, Mikovits said.
—Meg Wingerter, Denver Post, 1 June 2025
Gender-affirming hormone therapy is a medical treatment that uses hormones to help people align their physical characteristics with their gender identity.
—Elizabeth Wolfe, CNN Money, 29 May 2025
See All Example Sentences for hormone
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Qin Rao, Verywell Health, 4 June 2025
The former could be a side effect of a low-dose birth control pill or even ovulation (when a shift in hormones can cause a bit of your endometrium to break off early), for instance.
—Erica Sloan, SELF, 3 June 2025
While discussion about affirming care focuses on puberty blockers, hormones and surgeries, just using the right pronouns for someone can be important affirmation, Mikovits said.
—Meg Wingerter, Denver Post, 1 June 2025
Gender-affirming hormone therapy is a medical treatment that uses hormones to help people align their physical characteristics with their gender identity.
—Elizabeth Wolfe, CNN Money, 29 May 2025
See All Example Sentences for hormone
Cite this Entry
“Hormone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hormone. Accessed 10 Jun. 2025.
Copy CitationKids Definition
hormone
noun
hor·mone
ˈhȯr-ˌmōn 
: a product of living cells that circulates in body fluids (as blood) or sap and produces a specific and often stimulating effect on cells usually at a distance from the place where it is made
Medical Definition
hormone
noun
hor·mone
ˈhȯr-ˌmōn
1
a
: a product of living cells that circulates in body fluids (as blood) or sap and produces a specific often stimulatory effect on the activity of cells usually a distance from its point of synthesis
Some people develop insulin resistance, a condition in which response to the hormone is muted and the body must produce excess insulin to maintain healthy blood-glucose concentrations.—Ben Harder, Science News
Ben Harder, Science News
b
: a synthetic substance that acts like a hormone
2
: sex hormone
I discovered I had the classic signs of perimenopause, the prelude to "the change" when hormones yo-yo before menstrual periods cease altogether …—Beth Witrogen McLeod, Cooking Light
Beth Witrogen McLeod, Cooking LightLove words? Need even more definitions?
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