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

Furthermore, writing and acting out plays about their experiences with type 1 diabetes also eases children’s anxieties around their condition. —Elizabeth McClure, The Orlando Sentinel, 12 Mar. 2026

Kotb exited the show last year in order to have more time to take care of her daughter Hope, who has type 1 diabetes. —Daysia Tolentino, Entertainment Weekly, 16 Feb. 2026

Mattel took another step toward inclusive play on Monday with the launch of its first autistic Barbie, expanding its Fashionistas range just months after introducing a Barbie with type 1 diabetes. —Sujita Sinha, Interesting Engineering, 12 Jan. 2026

The study is comparing Isaac’s performance with monitoring blood sugar levels as compared to traditional blood sugar monitoring, starting with adolescents with type 1 diabetes and then expanding to adults with type 2 diabetes. —Adrienne So, Wired News, 8 Jan. 2026

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