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perfluoroalkyl and polyfluoroalkyl substances

(Encyclopedia)perfluoroalkyl and polyfluoroalkyl substances (PFAS), a group of several thousand synthetic organic chemical compounds made up of a chain of carbon atoms bonded to fluorine atoms. PFAS, which resist w...

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...

São Tomé and Principe

(Encyclopedia)CE5 São Tomé and Principe prēnˈsēpə [key], officially Democratic Republic of São Tomé and Principe, republic (2015 est. pop. 196,000), 372 sq mi (964 sq km), W Africa, in the Gulf of Guinea...

physical education and training

(Encyclopedia)physical education and training, organized instruction in motor activities that contribute to the physical growth, health, and body image of the individual. The historical roots of physical education ...

Wallis and Futuna Islands

(Encyclopedia)Wallis and Futuna Islands wŏlˈĭs, fo͞oto͞oˈnä [key], officially Territory of the Wallis and Futuna Islands, French overseas territory (2015 est. pop. 12,000), 106 sq mi (274 sq km), S Pacific, ...

Soleri, Paolo

(Encyclopedia)Soleri, Paolo, 1919–2013, Italian-American architect. He studied architecture in his native Turin (Ph.D., 1946). Soleri's works have been influenced by both Frank Lloyd Wright, with whom he apprenti...

decorations, civil and military

(Encyclopedia)decorations, civil and military, honors bestowed by a government to reward services or achievements, particularly those implying valor. The practice of bestowing such decorations dates back at least t...

track and field athletics

(Encyclopedia)track and field athletics or athletics, sports of foot racing, hurdling, jumping, vaulting, and throwing varied weights and objects. They are usually separated into two categories: track, the running ...

San Andrés and Providencia

(Encyclopedia)San Andrés and Providencia, district (1990 est. pop. 39,949), 21 sq mi (54 sq km), Colombia, comprising two small islands and seven groups of coral reefs and cays in the Caribbean 125–200 mi (201�...

Food and Agriculture Organization

(Encyclopedia)Food and Agriculture Organization (FAO), specialized agency of the United Nations, established in 1945. Its headquarters is in Rome, and it has a number of regional, subregional, and liaison offices a...