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Outer Banks

(Encyclopedia)Outer Banks or the Banks, chain of sand barrier islands and peninsulas, c.175 mi (280 km), along the Atlantic coast of SE Va. and E N.C. Separated by inlets and enclosing several saltwater lagoons, or...

leucine

(Encyclopedia)CE5 leucine lo͞oˈsēn [key], organic compund, one of the 20 amino acids commonly found in animal proteins. Only the l-stereooisomer appears in mammalian protein. It is one of several essential am...

Phoenix Islands

(Encyclopedia)Phoenix Islands, group of eight islands, 11 sq mi (28 sq km), central Pacific, N of Samoa. The chain comprises a portion of Kiribati. The two most important are Kanton (or Abariringa) and Enderbury Is...

Tennessee, river, United States

(Encyclopedia)Tennessee, river, c.650 mi (1,050 km) long, the principal tributary of the Ohio River. It is formed by the confluence of the Holston and French Broad rivers near Knoxville, Tenn., and follows a U-shap...

book clubs

(Encyclopedia)book clubs. As a phenomenon in American cultural life, book clubs have made an impact in two periods of history. During the 18th and 19th cent. book clubs were formed for the purposes of discussion an...

biological diversity

(Encyclopedia)biological diversity or biodiversity, the number of species in a given habitat. Scientists have variously estimated that there are from 3 to 30 million extant species, of which 2.5 million have been c...

proline

(Encyclopedia)CE5 proline prōˈlēn [key], organic compound, one of the 20 amino acids commonly found in animal proteins. Only the l-stereoisomer appears in mammalian protein. It is not essential to the human d...

Pyrenees

(Encyclopedia)Pyrenees pĭrˈənēz [key], Span. Pirineos, Fr. Pyrénées, mountain chain of SW Europe, 21,380 sq mi (55,374 sq km), between France and Spain, a formidable barrier between the Iberian Peninsula and ...

Himmler, Heinrich

(Encyclopedia)Himmler, Heinrich hīnˈrĭkh hĭmˈlər [key], 1900–1945, German Nazi leader. An early member of the National Socialist German Workers' (Nazi) party, Himmler took part in Adolf Hitler's “beer-hal...

collagen

(Encyclopedia)collagen kŏlˈəjən [key], any of a group of proteins found in skin, ligaments, tendons, bone and cartilage, and other connective tissue. Cells called fibroblasts form the various fibers in connecti...