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
And too much biotin, which is found in most skin, hair and nail supplements, can negatively interfere with some thyroid and hormone lab tests.
—
Hannah Yasharoff, USA TODAY, 10 Aug. 2024
Oily skin is a predisposition that’s dictated by genetics, but it’s also influenced by factors like hormones, lifestyle habits, and even the weather.
—Deanna Pai, Vogue, 10 Aug. 2024
Families are telling us that fear is driving trans children to discontinue routine hormone monitoring checks and to disengage with wider health care services.
—Cal Horton, Scientific American, 7 Aug. 2024
Leptin is a hormone that is derived from fat cells.
—Allison Herries, Verywell Health, 6 Aug. 2024
See all Example Sentences for hormone 
Hannah Yasharoff, USA TODAY, 10 Aug. 2024
Oily skin is a predisposition that’s dictated by genetics, but it’s also influenced by factors like hormones, lifestyle habits, and even the weather.
—Deanna Pai, Vogue, 10 Aug. 2024
Families are telling us that fear is driving trans children to discontinue routine hormone monitoring checks and to disengage with wider health care services.
—Cal Horton, Scientific American, 7 Aug. 2024
Leptin is a hormone that is derived from fat cells.
—Allison Herries, Verywell Health, 6 Aug. 2024
See all Example Sentences for hormone
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'hormone.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Hormone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hormone. Accessed 19 Aug. 2024.
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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