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
Again, everyone’s hormones and needs are different, so there’s no one-size-fits-all approach when hormones may be messing with your mental health.
—
Cassie Shortsleeve, SELF, 11 Mar. 2025
Depression, Confusion, and Irritability B6 is essential to making certain neurotransmitters and hormones, such as serotonin, which affect brain function and mood.
—Ann Pietrangelo, Verywell Health, 10 Mar. 2025
Researchers analyzed a cohort of 402 adults (ages 25-36) from Kaiser Permanente in Northern California, measuring body composition, muscle strength, calcium metabolism, bone turnover, hormones, and lifestyle factors.
—Faisal Kutty, Newsweek, 10 Mar. 2025
How Hormones Disrupt Sleep Once hormones hit women, all hell breaks loose for women’s sleep.
—Judy Stone, Forbes, 10 Mar. 2025
See All Example Sentences for hormone
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Cassie Shortsleeve, SELF, 11 Mar. 2025
Depression, Confusion, and Irritability B6 is essential to making certain neurotransmitters and hormones, such as serotonin, which affect brain function and mood.
—Ann Pietrangelo, Verywell Health, 10 Mar. 2025
Researchers analyzed a cohort of 402 adults (ages 25-36) from Kaiser Permanente in Northern California, measuring body composition, muscle strength, calcium metabolism, bone turnover, hormones, and lifestyle factors.
—Faisal Kutty, Newsweek, 10 Mar. 2025
How Hormones Disrupt Sleep Once hormones hit women, all hell breaks loose for women’s sleep.
—Judy Stone, Forbes, 10 Mar. 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 24 Mar. 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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