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Afghanistan

(Encyclopedia)CE5 Afghanistan ăfgănˈĭstănˌ, ăfgänˌĭstänˈ [key], officially Islamic Republic of Afghanistan, republic (2020 est. pop. 38,930,000), 249,999 sq mi (6...

Metellus

(Encyclopedia)Metellus mētĕlˈəs [key], ancient Roman family of the plebeian gens Caecilia. Lucius Caecilius Metellus, d. c.221 b.c., consul (251 b.c.), fought in the First Punic War. He was pontifex maximus (fr...

life

(Encyclopedia)life, although there is no universal agreement as to a definition of life, its biological manifestations are generally considered to be organization, metabolism, growth, irritability, adaptation, and ...

amino acid

(Encyclopedia)CE5 General formula of an amino acid CE5 Peptide bond between two molecules of the amino acid alanine amino acid əmēˈnō [key], any one of a class of simple organic compounds containin...

democracy

(Encyclopedia)democracy [Gr.,=rule of the people], term originating in ancient Greece to designate a government where the people share in directing the activities of the state, as distinct from governments controll...

criminology

(Encyclopedia)criminology, the study of crime, society's response to it, and its prevention, including examination of the environmental, hereditary, or psychological causes of crime, modes of criminal investigation...

Chechnya

(Encyclopedia)Chechnya chəchĕnˈ [key], republic (1990 est. pop. 1,300,000, with neighboring Ingushetia), c.6,100 sq mi (15,800 sq km), SE European Russia, in the N Caucasus. Grozny is the capital. Prior to 1992 ...

chromosphere

(Encyclopedia)chromosphere krōˈməsfērˌ [key] [Gr.,=color sphere], layer of rarefied, transparent gases in the solar atmosphere; it measures 6,000 mi (9,700 km) in thickness and lies between the photosphere (th...

clay

(Encyclopedia)clay, common name for a number of fine-grained, earthy materials that become plastic when wet. Chemically, clays are hydrous aluminum silicates, ordinarily containing impurities, e.g., potassium, sodi...

Securities and Exchange Commission

(Encyclopedia)Securities and Exchange Commission (SEC), agency of the U.S. government created by the Securities Exchange Act of 1934 and charged with protecting the interests of the public and investors in connecti...