Hyperosmolar syndrome – Wikipedia

Hyperosmolar syndrome or diabetic hyperosmolar syndrome is a medical emergency caused by a very high blood glucose level. The prefix “hyper” means high, and ” osmolarity ” is a measure of the concentration of active particles in a solution, so the name of the syndrome simply refers to the high concentration of glucose in the blood.

https://en.wikipedia.org/wiki/Hyperosmolar_syndrome