insulin
noun
in·su·lin
ˈin(t)-s(ə-)lən 
: a protein pancreatic hormone secreted by the beta cells of the islets of Langerhans that is essential especially for the metabolism of carbohydrates and the regulation of glucose levels in the blood and that when insufficiently produced results in diabetes mellitus
Examples of insulin in a Sentence
Recent Examples on the Web
And research suggests a variety of explanations could explain that link, including exercise’s effect on levels of hormones like estrogen and insulin that influence some cancers, as well as its ability to ramp up the activity of some immune cells and keep inflammation at bay.
—
Erica Sloan, SELF, 23 Jan. 2025
Foods with little fiber are more likely to trigger blood-sugar and insulin spikes.
—Dr. Anthony Yuon, Contributor, CNBC, 22 Jan. 2025
This leads to a greater impact on blood sugar and insulin levels.6
Studies show that eating a diet high in refined carbs can lead to several health issues.
—Jillian Kubala, Health, 18 Jan. 2025
People with type 1 diabetes lack insulin, which is a hormone that helps the body manage glucose levels, also known as blood sugar levels.
—Katia Hetter, CNN, 17 Jan. 2025
See all Example Sentences for insulin 
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.
Erica Sloan, SELF, 23 Jan. 2025
Foods with little fiber are more likely to trigger blood-sugar and insulin spikes.
—Dr. Anthony Yuon, Contributor, CNBC, 22 Jan. 2025
This leads to a greater impact on blood sugar and insulin levels.6
Studies show that eating a diet high in refined carbs can lead to several health issues.
—Jillian Kubala, Health, 18 Jan. 2025
People with type 1 diabetes lack insulin, which is a hormone that helps the body manage glucose levels, also known as blood sugar levels.
—Katia Hetter, CNN, 17 Jan. 2025
See all Example Sentences for insulin
Dictionary Entries Near insulin
Cite this Entry
“Insulin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insulin. Accessed 31 Jan. 2025.
Copy CitationKids Definition
insulin
noun
in·su·lin
ˈin(t)-s(ə-)lən
: a hormone that is produced by the pancreas and is necessary for the normal use of glucose by the body
Medical Definition
insulin
noun
in·su·lin
ˈin(t)-s(ə-)lən
: a protein hormone that is synthesized in the pancreas from proinsulin and secreted by the beta cells of the islets of Langerhans, that is essential for the metabolism of carbohydrates, lipids, and proteins, that regulates blood sugar levels by facilitating the uptake of glucose into tissues, by promoting its conversion into glycogen, fatty acids, and triglycerides, and by reducing the release of glucose from the liver, and that when produced in insufficient quantities results in diabetes mellitus see iletin
Love words? Need even more definitions?
Merriam-Webster unabridged
Share