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

New drug for diabetes The first drug that has been found to delay the onset of type 1 diabetes is to become available on the NHS in England and Wales. — The Week Uk, TheWeek, 6 July 2026

Autoimmune gastritis is also more common in people with other autoimmune disorders such as Hashimoto's disease and type 1 diabetes and can also be associated with vitamin B-12 deficiency, according to Mayo Clinic. — Sara Moniuszko, USA Today, 6 July 2026

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

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