: a peptide hormone that is produced by fat cells and plays a role in body weight regulation by acting on the hypothalamus to suppress appetite and burn fat stored in adipose tissue
Examples of leptin in a Sentence
Recent Examples on the Web
You Miss Your Body's Fullness Cues Eating too quickly may reduce your natural appetite regulation by rushing past fullness cues and reducing the release of ghrelin and leptin, essential hunger and fullness hormones.
—
Brandi Jones, Verywell Health, 7 July 2025
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
Ghrelin also works with leptin, another hormone, to regulate your appetite.
—Brittany Lubeck, Ms, Rdn, Verywell Health, 14 Apr. 2025
When dieting or losing weight, ghrelin levels tend to rise while leptin levels typically decrease.13
Essentially, ghrelin and leptin work together to control your appetite by sending hunger and satiety cues.
—Brittany Lubeck, Ms, Rdn, Verywell Health, 14 Apr. 2025
See All Example Sentences for leptin
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Brandi Jones, Verywell Health, 7 July 2025
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
Ghrelin also works with leptin, another hormone, to regulate your appetite.
—Brittany Lubeck, Ms, Rdn, Verywell Health, 14 Apr. 2025
When dieting or losing weight, ghrelin levels tend to rise while leptin levels typically decrease.13
Essentially, ghrelin and leptin work together to control your appetite by sending hunger and satiety cues.
—Brittany Lubeck, Ms, Rdn, Verywell Health, 14 Apr. 2025
See All Example Sentences for leptin
Cite this Entry
“Leptin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leptin. Accessed 13 Jul. 2025.
Copy CitationMedical Definition
leptin
noun
lep·tin
ˈlep-tən 
: a peptide hormone that is produced by fat cells and plays a role in body weight regulation by acting on the hypothalamus to suppress appetite and burn fat stored in adipose tissue
Love words? Need even more definitions?
Merriam-Webster unabridged
Share