polysaccharides
Technical term in chemistry for complex carbohydrates composed of many monosaccharide units. Compare with 少糖類 (oligosaccharides).
See also: 少糖類
Starch and cellulose are types of polysaccharides.
polysaccharide thickener
Compound of 多 (many) + 糖 (sugar) + 類 (category, type). A straightforward modern scientific term.