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

Those who had these genetic issues had higher body mass index (BMI) and body mass on average, and were more likely to have type 1 diabetes and other metabolic issues. — Nadine Wehida, Scientific American, 25 June 2026

Harvard Health reports the associations may stretch well beyond the gut, from autoimmune diseases like lupus, type 1 diabetes and multiple sclerosis to chronic fatigue, fibromyalgia, arthritis, allergies, asthma, acne, obesity and even mental illness. — Ryan Brennan, Sacbee.com, 24 June 2026

The study analyzed health records from more than 26,000 adults with obesity and at least one autoimmune disease, such as rheumatoid arthritis, psoriatic arthritis, type 1 diabetes, vitiligo, and celiac disease. — Tom Gavin, EverydayHealth.com, 9 June 2026

Maygen says Paisley has struggled with anxiety ever since being diagnosed with type 1 diabetes at 2 years old. — Nicki Cox, PEOPLE, 26 Apr. 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