Business / Agriculture / Arid: A relatively dry climate in which annual precipitation is less than 10 inches, which generally is insufficient for crops to be grown without irrigation. Such areas usually are the focus of debate over federal water policies.
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Science / Chemistry / Polysaccharide: A carbohydrate consisting of a large number of linked monosaccharide units. Examples of polysaccharides are cellulose and starch. MORE


Science / Biology / Polysaccharides: Long chains of monosaccharide units bonded together; e.g., glycogen, starch, and cellulose. MORE


Science / Chemistry / Oligosaccharide: A carbohydrate that consists of only a few linked monosaccharide units. MORE


Science / Biology / Monosaccharides: Simple carbohydrates, usually with a five- or six-carbon skeleton; e.g., glucose and fructose. A carbohydrate composed of a single sugar unit, such as glucose, ribose, deoxyribose, etc. MORE


Science / Biology / Disaccharides: 1. Sugars made up of two monosaccharides held together by a covalent bond; e.g., sucrose and lactose. 2. Type of sugar (saccharide) composed of two sugar molecules bonded together with an ester (coval MORE


Science / Chemistry / Monosaccharide: A carbohydrate that cannot be decomposed into simpler carbohydrates by hydrolysis. MORE