type 1 diabetes

noun

ˈtīp-ˈwən- 

: 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

In the last decade, Barbie has been rolling out more inclusive and diverse dolls, such as the first-ever one with type 1 diabetes and one with Down syndrome. —Anna Halkidis, Parents, 18 Sep. 2025

In 2023, an Australian trial reported that a daily pill of baricitinib—commonly prescribed for rheumatoid arthritis and alopecia—could safely preserve the body's own insulin production and slow the development of type 1 diabetes in those recently diagnosed. —Hannah Millington, MSNBC Newsweek, 18 Sep. 2025

Zverev, who has type 1 diabetes, reported dizziness during his quarterfinal against Ben Shelton and then faded in the second set of his semifinal against Alcaraz. —Charlie Eccleshare, New York Times, 18 Aug. 2025

These results represent a shift in the care landscape for type 1 diabetes. —William A. Haseltine, Forbes.com, 12 Aug. 2025

Word History

First Known Use

1982, in the meaning defined above

Medical Definition

type 1 diabetes

noun

ˌtīp-ˈwən- 

: 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