1. sugar energy source: a six-carbon monosaccharide produced in plants by photosynthesis and in animals by the metabolism of carbohydrates. The commonest form, dextrose, is used by all living organisms. C6H12O6
2. syrupy mixture: a syrup containing dextrose, maltose, dextrin, and water that is obtained from starch. Use: food manufacture, alcoholic fermentation.
[Mid-19th century. Via French< Greek gleukos "sweet wine"]
