1. A reference to an abnormally high blood sugar usually associated with diabetes.
2. Characterized by, or causing, hyperglycemia (excess of glucose in the blood).

Glucose is a monosaccharide (a simple sugar; a carbohydrate that cannot be broken down to simpler substances by hydrolysis) which is found in many foods; especially, fruit, and is the end product of carbohydrate digestion in the body.

Soon after digestion, other monosaccharides; such as, fructose and galactose get converted into glucose, so that it is the only monosaccharide present in significant amounts in body fluids.

The metabolism of glucose is the chief source of energy for the cells of the body, and the rate of such metabolism is controlled by insulin. In pharmaceutical preparations, glucose is called dextrose.