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
Chronic stress may disrupt the endocrine system (hormone system), causing abnormal function of your organs, including your skin.
—
Wendy Wisner, Health, 28 Dec. 2024
Peloquin, a transgender woman who was on hormone treatment at the time, further alleges that Russell then reached under her shirt and felt both of her breasts.
—Jennifer Zhan, Vulture, 23 Dec. 2024
Sleep challenges are particularly common for women over 40, with hormone fluctuations, stress and other factors disrupting rest.
—Lauryn Higgins, Flow Space, 20 Dec. 2024
Stress hormones like cortisol are helpful for short periods.
—Carrie Madormo, Rn, Mph, Verywell Health, 19 Dec. 2024
See all Example Sentences for hormone 
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Wendy Wisner, Health, 28 Dec. 2024
Peloquin, a transgender woman who was on hormone treatment at the time, further alleges that Russell then reached under her shirt and felt both of her breasts.
—Jennifer Zhan, Vulture, 23 Dec. 2024
Sleep challenges are particularly common for women over 40, with hormone fluctuations, stress and other factors disrupting rest.
—Lauryn Higgins, Flow Space, 20 Dec. 2024
Stress hormones like cortisol are helpful for short periods.
—Carrie Madormo, Rn, Mph, Verywell Health, 19 Dec. 2024
See all Example Sentences for hormone
Dictionary Entries Near hormone
Cite this Entry
“Hormone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hormone. Accessed 2 Jan. 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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