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revolution

(Encyclopedia) revolution, in a political sense, fundamental and violent change in the values, political institutions, social structure, leadership, and policies of a society. The totality of change…

Fortas, Abe

(Encyclopedia) Fortas, AbeFortas, Abefôrˈtəs [key], 1910–82, associate justice of the U.S. Supreme Court (1965–69), b. Memphis, Tenn. After receiving his law degree from Yale in 1933, he taught there…

burglary

(Encyclopedia) burglary, at common law, the breaking and entering of a dwelling house of another at night with the intent to commit a felony, whether the intent is carried out or not. This definition…

zero

(Encyclopedia) zero, that number which, when added to any number, leaves the latter unchanged; its symbol is 0. The introduction of zero into the decimal system was the most significant achievement…

Monophysitism

(Encyclopedia) MonophysitismMonophysitismmənŏfˈĭsĭtˌĭzəm [key] [Gr.,=belief in a single nature], a heresy of the 5th and 6th cent., which grew out of a reaction against Nestorianism. It was…

mental retardation

(Encyclopedia) mental retardation, below average level of intellectual functioning, usually defined by an IQ of below 70 to 75, combined with limitations in the skills necessary for daily living.…

Lee, Ang

(Encyclopedia) Lee, AngLee, Angäng [key], 1954–, Taiwanese filmmaker. Lee is one of the few directors who have achieved commercial and critical success in Asia and the United States, and is also…

lipids

(Encyclopedia) lipids, a broad class of organic products found in living systems. Most are insoluble in water but soluble in nonpolar solvents. The definition excludes the mineral oils and other…

digital radio

(Encyclopedia) digital radio, audio broadcasting in which an analog audio signal is converted into a digital signal before being transmitted; also known as digital audio broadcasting (DAB) and high-…

Disarmament Conference

(Encyclopedia) Disarmament Conference, 1932–37, meeting for the discussion of general disarmament. The first systematic efforts to limit armaments on an international scale, in either a quantitative…