type 1 diabetes

noun

: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Kirby was diagnosed with type 1 diabetes at the age of ten and openly discusses her health journey online. Madison Dapcevich, Outside, 28 Mar. 2026 While other countries, including Canada, have approved Awiqli for use in people with type 1 diabetes, the FDA determined in 2024 that the medication had a higher risk of causing low blood sugar in people with type 1 diabetes, and so declined to approve it for this group. Emily Kay Votruba, EverydayHealth.com, 27 Mar. 2026 Patients with type 1 diabetes must constantly remain aware of the blood sugar levels to properly manage their nutrition and insulin intake to support healthy living. Elizabeth McClure, The Orlando Sentinel, 12 Mar. 2026 People with type 1 diabetes must take insulin daily to survive and manage blood sugar levels. Melissa Rudy, FOXNews.com, 2 Mar. 2026 See All Example Sentences for type 1 diabetes

Word History

First Known Use

1982, in the meaning defined above

Time Traveler
The first known use of type 1 diabetes was in 1982

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Cite this Entry

“Type 1 diabetes.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/type%201%20diabetes. Accessed 5 Apr. 2026.

Medical Definition

type 1 diabetes

noun
: 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

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