: any of various abnormal conditions characterized by the secretion and excretion of excessive amounts of urine
especially : diabetes mellitus

Examples of diabetes in a Sentence

Recent Examples on the Web
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Beyond genetics, other factors that contribute to dementia risk include family history, unmanaged hearing loss, chronic conditions such as diabetes and liver disease, smoking, and heavy alcohol use. — Tribune News Service, Baltimore Sun, 11 Nov. 2026 As for East Orange, Slaven said the facility is outperforming private hospitals on certain metrics, such as diabetes care and some cancer screenings. — Eric Umansky, ProPublica, 11 Nov. 2026 This episode traces the history of race and diabetes in America to unpack why Black patients are still less likely to get access to GLP-1s, and why closing that gap will take more than a prescription. — Dolly Li, Vox, 11 Nov. 2026 Certain cat breeds are more susceptible to hereditary conditions, while illnesses such as diabetes and kidney disease can require treatment over many years. — Matt Richardson, CBS News, 10 Nov. 2026 See All Example Sentences for diabetes

Word History

Etymology

Middle English diabet, diabete, borrowed from Late Latin diabētēs, borrowed from Greek diabḗtēs, from diabē-, variant stem of diabaínein "to stride, walk or stand with legs apart, step across, cross over" (from dia- dia- + baínein "to step, walk") + -tēs, suffix of agency — more at come entry 1

Note: The literal sense of Greek diabḗtēs in relation to the base verb diabaínein is not entirely clear. The Greek physician Aretaeus of Cappadocia (active ca. 130-40 A.D.), author of a detailed description of diabetes mellitus (in Book 2 of De causis et signis diuturnorum morborum), takes the name of the disorder as a given, and explains it as a particular application of the word diabḗtēs, the meaning of which he seems to regard as self-evident. It has been assumed that he alludes to diabḗtēs in the sense "siphon," referring to frequent urination, as if liquid was being drawn out of the sufferer by a siphon. In the following clause, however, he maintains that moisture (tò hygrón) does not stay in the body but leaves it "as if by a diabáthrē ("hókōs diabáthrēi")." The word diabáthra (Ionic diabáthrē)—also a derivative of diabaínein—has various attested meanings: "ladder," "gangway," "bridge." The suggestion has been made that "bridge" or "channel" is the most appropriate sense, though the mixing of metaphors is perhaps an indication that the text is corrupt, or that some no longer recoverable sense of the word is in play. (See discussion in Chalmers L. Gemmill, "The Greek concept of diabetes," Bulletin of the New York Academy of Medicine, vol. 48, no. 8 [September, 1972], pp. 1033-36.)

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of diabetes was in the 15th century

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Cite this Entry

“Diabetes.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diabetes. Accessed 13 Nov. 2026.

Kids Definition

: any of various bodily conditions in which abnormally large amounts of urine are produced
especially : diabetes mellitus

Medical Definition

plural diabetes
: any of various abnormal conditions characterized by the secretion and excretion of excessive amounts of urine
especially : diabetes mellitus

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