type 1 diabetes

noun

: a form of diabetes mellitus that usually develops during childhood or adolescence and is characterized by a severe deficiency in insulin secretion resulting from atrophy of the islets of Langerhans and causing hyperglycemia and a marked tendency toward ketoacidosis

called also insulin-dependent diabetes, insulin-dependent diabetes mellitus, type 1 diabetes mellitus

Examples of type 1 diabetes in a Sentence

Recent Examples on the Web
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.
Diabetes Diabetic ketoacidosis (DKA) is a serious complication that can happen to people with diabetes, especially those with type 1 diabetes. Lauren O'Connor, Health, 23 Oct. 2025 Her dad also had type 1 diabetes, and Jordan appreciated that Megan understood all that goes into managing the disease. Sam Reed, Glamour, 22 Oct. 2025 Arnold, diagnosed with type 1 diabetes at age 15, has been open about her journey on social media. Amanda Castro, MSNBC Newsweek, 15 Oct. 2025 That’s when doctors told the family that Glass had type 1 diabetes. Liz Szabo, Scientific American, 14 Oct. 2025 See All Example Sentences for type 1 diabetes

Word History

First Known Use

1982, in the meaning defined above

Time Traveler
The first known use of type 1 diabetes was in 1982

Browse Nearby Words

Cite this Entry

“Type 1 diabetes.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/type%201%20diabetes. Accessed 31 Oct. 2025.

Medical Definition

type 1 diabetes

noun
: diabetes of a form that usually develops during childhood or adolescence and is characterized by a severe deficiency of insulin secretion resulting from atrophy of the islets of Langerhans and causing hyperglycemia and a marked tendency toward ketoacidosis

called also insulin-dependent diabetes, insulin-dependent diabetes mellitus, juvenile diabetes, juvenile-onset diabetes, type 1 diabetes mellitus

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!