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ester

(Encyclopedia)CE5 Esters ester, any one of a group of organic compounds with general formula RCO2R′ (where R and R′ are alkyl groups or aryl groups) that are formed by the reaction between an alcohol and an...

Huston, John

(Encyclopedia)Huston, John hyo͞osˈtən [key], 1906–87, American motion picture director, writer, and actor, b. Nevada, Mo. In many of his films, such as The Treasure of the Sierra Madre (1948) and Moby Dick (19...

stealth technology

(Encyclopedia)stealth technology, designs and materials engineered for the military purpose of avoiding detection by radar or any other electronic system. Stealth, or antidetection, technology is applied to vehicle...

Split

(Encyclopedia)Split splēt [key], Ital. Spalato, city (2011 pop. 178,102), S Croatia, on the Dalmatian coast of the Adriatic Sea. It is a major seaport, a regional transportation hub, and a leading commercial cente...

muon

(Encyclopedia)muon myo͞oˈŏn [key], elementary particle heavier than an electron but lighter than other particles having nonzero rest mass. The name muon is derived from mu meson, the former name of the particle....

Magdeburg

(Encyclopedia)Magdeburg mäkˈdəbo͝orkh [key], city (1994 pop. 270,546), capital of Saxony-Anhalt, central Germany, on the Elbe River. It is a large inland port, an industrial center, and a rail and road junction...

e-cigarette

(Encyclopedia)e-cigarette or electronic cigarette, a device that produces an aerosol from a liquid containing nicotine or another active ingredient, allowing it to be inhaled in a manner similar to smoking a cigare...

Eyck, van

(Encyclopedia)Eyck, van văn īk [key], family of Flemish painters, the brothers Hubert van Eyck, c.1370–1426, and Jan van Eyck, c.1390–1441. Of the van Eycks' works that have survived, the largest is an alta...

air navigation

(Encyclopedia)air navigation, science and technology of determining the position of an aircraft with respect to the surface of the earth and accurately maintaining a desired course (see navigation). Basic to air ...

Moradabad

(Encyclopedia)Moradabad môrədəbădˈ, mōrädäbädˈ [key], city (1991 pop. 443,701), Uttar Pradesh state, N central India. It is an important rail junction and an agricultural market center. There are industri...