Glucose (noun)

1. A simple sugar (monosaccharide) that is an important energy source in living organisms and is a component of many carbohydrates.
2. A sweet, colorless or slightly yellowish, syrupy liquid that is obtained as a by-product of the fermentation of sugars and starches.

Origin:

Late 18th century: from french glucose, from gluco- (from greek glukus "sweet") + -ose.

Examples:

1. Glucose is an essential source of energy for the body.
2. Glucose is found in many fruits and vegetables.
3. Glucose syrup is commonly used in food industry as a sweetener.
4. Glucose monitoring is important for people with diabetes.
5. Glucose is a simple sugar that can be converted into other sugars or into energy.