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ketone
(Encyclopedia)CE5 Ketones ketone kēˈtōn [key], any of a class of organic compounds that contain the carbonyl group, C=O, and in which the carbonyl group is bonded only to carbon atoms. The general formula fo...mustard gas
(Encyclopedia)mustard gas, chemical compound used as a poison gas in World War I. The burning sensation it causes on contact with the skin is similar to that caused by oil from black mustard seeds. The compound is ...Sharpless, Karl Barry
(Encyclopedia)Sharpless, Karl Barry, 1941–, American chemist, b. Philadelphia, Ph.D. Stanford, 1968. Sharpless was a professor at the Massachusetts Institute of Technology (1970–77 and 1980–90) and at Stanfor...catabolism
(Encyclopedia)catabolism kətăbˈəlĭzˌəm [key], subdivision of metabolism involving all degradative chemical reactions in the living cell. Large polymeric molecules such as polysaccharides, nucleic acids, and ...Rodgers, Christopher Raymond Perry
(Encyclopedia)Rodgers, Christopher Raymond Perry, 1819–92, American naval officer, b. Brooklyn, N.Y. Appointed midshipman in 1833, he served in the Mexican War. In the Civil War he took part in the Union reductio...astrakhan, pelt and fabric
(Encyclopedia)astrakhan ăsˈtrəkən [key] [from Astrakhan], pelt of the newborn Persian lamb, used like fur in garments, and also the woolen fabric woven to resemble real astrakhan. The cloth is woven on a cotton...Mexican art and architecture
(Encyclopedia)Mexican art and architecture, works of art and structures produced in the area that is now the country of Mexico. Such arts were already highly developed in the ancient civilizations flourishing befor...Moorish art and architecture
(Encyclopedia)Moorish art and architecture, branch of Islamic art and architecture developed in the westernmost lands of the Muslims, known as the Maghreb: N Africa and Spain. The Great Mosque at Al Qayrawan in Tun...monsters and imaginary beasts
(Encyclopedia)monsters and imaginary beasts. The mythologies and legends of ancient and modern cultures teem with an enormous variety of monsters and imaginary beasts. A great number of these are composites of diff...Mogul art and architecture
(Encyclopedia)Mogul art and architecture: see Mughal art and architecture. ...Browse by Subject
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