Which term describes a carbohydrate consisting of two monosaccharides joined together?

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A carbohydrate made from two monosaccharides joined together is a disaccharide. This happens when two sugar units link through a glycosidic bond, typically formed by dehydration synthesis and removable by hydrolysis. Disaccharides are distinct from monosaccharides (a single sugar unit), oligosaccharides (a short chain of a few units), and polysaccharides (long polymers of many units). Common examples include sucrose, lactose, and maltose.