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

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

These products are designed for people with type 1 diabetes and other conditions that cause hypoglycemia.1 Each packet contains 15 grams of carbs.12 Most glucose products come in different flavors and can be purchased over the counter (OTC). —Carrie Madormo, Verywell Health, 11 Aug. 2025

Indeed, depression is more than three times more prevalent in people with type 1 diabetes (T1D) and nearly twice as prevalent in people with type 2 diabetes (T2D). —Paul McClure 09, New Atlas, 9 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