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Cook Islands

(Encyclopedia)Cook Islands, island group (2021 est. pop. 17,564), 90 sq mi (234 sq km), S Pacific, SE of Samoa; a self-governing state in free association with New Ze...

class action

(Encyclopedia)class action, in law, a device that permits one or more persons to sue or be sued as representative of a large group of people interested in the matter at issue. The court in whose jurisdiction a suit...

Euphrates

(Encyclopedia)Euphrates yo͞ofrāˈtēz [key], Turkish Frat, Arabic Al Furat, river of SW Asia, c.1,700 mi (2,740 km) long, formed by the confluence of the Kara and the Murad rivers, E central Turkey, and flowing g...

Faeroe Islands

(Encyclopedia)Faeroe Islands or Faröe Islands both: fârˈō [key], Dan. Færøerne, Faeroese Føroyar, group of volcanic islands (2015 est. pop. 49,000), 540 sq mi (1,399 sq km), Denmark, in the N Atlantic, betwe...

Ferrara-Florence, Council of

(Encyclopedia)Ferrara-Florence, Council of, 1438–45, second part of the 17th ecumenical council of the Roman Catholic Church; the first part was the Council of Basel, canonically convened but after 1437 schismati...

glacial periods

(Encyclopedia)glacial periods, times during which large portions of the earth's surface were covered with thick glacial ice sheets. In the Pleistocene epoch, in the Carboniferous and Permian periods of the Paleozoi...

guidance and counseling

(Encyclopedia)guidance and counseling, concept that institutions, especially schools, should promote the efficient and happy lives of individuals by helping them adjust to social realities. The disruption of commun...

erosion

(Encyclopedia)erosion ĭrōˈzhən [key], general term for the processes by which the surface of the earth is constantly being worn away. The principal agents are gravity, running water, near-shore waves, ice (most...

Moscow, grand duchy of

(Encyclopedia)Moscow or Muscovy, grand duchy of, state existing in W central Russia from the late 14th to mid-16th cent., with the city of Moscow as its nucleus. Its formation and eventual ascendancy over other Rus...

particle detector

(Encyclopedia)CE5 Particle detector—Bubble chamber: A. Pressure drops as piston is raised; B. Charged particles passing through chamber ionize atoms in liquid; C. Bubbles form around atoms and form visible tra...