diabetes insipidus
noun
diabetes in·sip·i·dus -in-ˈsi-pə-dəs 
: a disorder of the pituitary gland characterized by intense thirst and by the excretion of large amounts of urine
Example Sentences
Recent Examples on the Web There is another kind of diabetes, diabetes insipidus, that is also often responsible for polyuria, explains the National Institute of Diabetes and Digestive and Kidney Diseases. 
Sarah Bradley, Health.com, 19 Oct. 2021 Those with diabetes insipidus would also be frequently urinating. Zee Krstic, Good Housekeeping, 27 Sep. 2020
Sarah Bradley, Health.com, 19 Oct. 2021 Those with diabetes insipidus would also be frequently urinating. Zee Krstic, Good Housekeeping, 27 Sep. 2020 Word History
Etymology
borrowed from New Latin diabētēs insipidus, literally, "bland diabetes," referring to the lack of sweetness in the urine
Note: Term introduced, along with diabētēs mellītus, by the Scottish physician William Cullen (1710-90) in Synopsis nosologiæ methodicæ, editio tertia, tomus II (Edinburgh, 1780), pp. 244-45.
First Known Use
1788, in the meaning defined above
Medical Definition
diabetes insipidus
noun
diabetes in·sip·i·dus -in-ˈsip-əd-əs
: a disorder that is caused by insufficient secretion of vasopressin by the pituitary gland or by a failure of the kidneys to respond to circulating vasopressin and that is characterized by intense thirst and by the excretion of large amounts of urine
But there is another type of diabetes—known as diabetes insipidus. In this rare disease, the kidneys can't hold on to the water the body needs. The urine is insipid—so diluted it looks, smells and tastes just like water. Lisa Sanders, The New York Times Magazine
see central diabetes insipidus, nephrogenic diabetes insipidus Lisa Sanders, The New York Times Magazine