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Superior, Lake

(Encyclopedia) Superior, Lake, largest freshwater lake in the world, 31,820 sq mi (82,414 sq km), 350 mi (563 km) long and 160 mi (257 km) at its greatest width, bordered on the W by NE Minnesota, on…

Encyclopédie

(Encyclopedia) EncyclopédieEncyclopédieäNsēklôpādēˈ [key], the work of the French Encyclopedists, or philosophes. The full title was Encyclopédie; ou, Dictionnaire raisonné des sciences, des arts, et…

genetic testing

(Encyclopedia) genetic testing, medical screening for genetic disorders, by examining either a person's DNA directly or a person's biochemistry or chromosomes for indirect evidence. Testing may be…

Ugarit

(Encyclopedia) UgaritUgarit&oomacr;gərētˈ [key], ancient city, capital of the Ugarit kingdom, W Syria, on the Mediterranean coast N of modern Latakia. Although the name of this city was known…

genetics

(Encyclopedia) genetics, scientific study of the mechanism of heredity. While Gregor Mendel first presented his findings on the statistical laws governing the transmission of certain traits from…

Audubon, John James

(Encyclopedia) Audubon, John JamesAudubon, John Jamesôˈdəbŏn [key], 1785–1851, American ornithologist, b. Les Cayes, Santo Domingo (now Haiti). The illegitimate son of a French sea captain and…

morphine

(Encyclopedia) morphine, principal derivative of opium, which is the juice in the unripe seed pods of the opium poppy, Papaver somniferum. It was first isolated from opium in 1803 by the German…

magnetic resonance

(Encyclopedia) magnetic resonance, in physics and chemistry, phenomenon produced by simultaneously applying a steady magnetic field and electromagnetic radiation (usually radio waves) to a sample of…

electronics industry

(Encyclopedia) electronics industry, the business of creating, designing, producing, and selling devices such as radios, televisions, stereos, computers, semiconductors, transistors, and integrated…

heredity

(Encyclopedia) heredity, transmission from generation to generation through the process of reproduction in plants and animals of factors which cause the offspring to resemble their parents. That like…