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turpentine
(Encyclopedia) turpentine, yellow to brown semifluid oleoresin exuded from the sapwood of pines, firs, and other conifers. It is made up of two principal components, an essential oil and a type of…benzaldehyde
(Encyclopedia) benzaldehydebenzaldehydebĕnzălˈdəhīd [key] or benzenecarbonalbenzenecarbonalbĕnˌzēnkärˈbənəl [key], C6H5CHO, colorless liquid aldehyde with a characteristic almond odor. It boils at…colligative properties
(Encyclopedia) colligative properties, properties of a solution that depend on the number of solute particles present but not on the chemical properties of the solute. Colligative properties of a…catapult
(Encyclopedia) catapultcatapultkătˈəpŭltˌ [key], mechanism used to throw missiles in ancient and medieval warfare. At first, catapults were specifically designed to shoot spears or other missiles at…dry cleaning
(Encyclopedia) dry cleaning, process of cleaning fabrics without water. Special solvents and soaps are used so as not to harm fabrics and dyes that will not withstand the effects of ordinary soap and…tartaric acid
(Encyclopedia) tartaric acid, HO2CCHOHCHOHCO2H, white crystalline dicarboxylic acid. It occurs as three distinct isomers, the dextro-, levo-, and meso- forms. The dextro- and levo- forms are…Victoria Falls
(Encyclopedia) Victoria Falls, waterfall, c.1 mi (1.6 km) wide with a maximum drop of 420 ft (128 m), in the Zambezi River, S central Africa, on the Zambia-Zimbabwe border. The falls are formed as…sweetener, artificial
(Encyclopedia) sweetener, artificial, substance used as a low-calorie sugar substitute. Saccharin, cyclamates, and aspartame have been the most commonly used artificial sweeteners. Saccharin, a coal-…Rankine temperature scale
(Encyclopedia) Rankine temperature scale, temperature scale having an absolute zero, below which temperatures do not exist, and using a degree of the same size as that used by the Fahrenheit…cooking
(Encyclopedia) cooking, the process of using heat to prepare foods for consumption. Many common cooking methods involve the use of oil. Frying is cooking in hot oil; sautéing is cooking in a small…Trending
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