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 take insulin or another medication to treat type 1 diabetes may occasionally need to eat a snack before bedtime in order to prevent or treat low blood sugar, according to the Mayo Clinic. —Hannah Yasharoff, USA Today, 25 June 2025

However, in autoimmune diseases such as type 1 diabetes and rheumatoid arthritis, T cells can either directly harm the body’s own tissues or act as helper cells that enable other immune cells to produce antibodies that attack the body. —New Atlas, 19 June 2025

One in around 141 Americans have celiac disease, according to experts, with a higher prevalence in people of European background or those who have other conditions such as type 1 diabetes or irritable bowel syndrome. —Bronwyn Thompson, New Atlas, 9 June 2025

Symptoms of type 1 diabetes can include excessive thirst and hunger, frequent urination, unexplained weight loss, fatigue, blurred vision and slow healing of cuts and sores. —Angelica Stabile, FOXNews.com, 28 May 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