Columbia Encyclopedia

Search results

500 results found

animal-rights movement

(Encyclopedia)animal-rights movement, diverse individuals and groups concerned with protecting animals from perceived abuse or misuse. Supporters are specifically concerned with the use of animals for medical and c...

Johnson, Reverdy

(Encyclopedia)Johnson, Reverdy, 1796–1876, American lawyer and statesman, b. Annapolis, Md. Admitted to the bar in 1816, he served in the Maryland legislature (1821–28) and the U.S. Senate (1845–49) and was a...

perpetual-motion machine

(Encyclopedia)perpetual-motion machine, device that would be able to operate continuously and supply useful work, in violation of the laws of thermodynamics. A machine that would produce more energy in the form of ...

electoral college

(Encyclopedia)electoral college, in U.S. government, the body of electors that chooses the president and vice president. The Constitution, in Article 2, Section 1, provides: “Each State shall appoint, in such Man...

Leterme, Yves

(Encyclopedia)Leterme, Yves ēv lĕtûrˈmĕ [key], 1960–, Belgian political leader, prime minister of Belgium (2008, 2009–11), grad. Catholic Univ. of Leuvan (LL.B., 1981), Ghent Univ. (M.A., 1985). A Dutch-sp...

membrane

(Encyclopedia)membrane, structure composed mostly of lipid and protein that forms the external boundary of cells and of major structures within cells. Membrane organization is based on a sheet two molecules thick�...

asylum

(Encyclopedia)asylum əsīˈləm [key], extension of hospitality and protection to a fugitive and the place where such protection is offered. The use of temples and churches for this purpose in ancient and medieval...

Mindszenty, József

(Encyclopedia)Mindszenty, József mĭndˈsĕntē [key], 1892–1975, Hungarian prelate, cardinal of the Roman Catholic Church. He was bishop of Veszprém during the German occupation of Hungary in World War II. His...

monkeypox

(Encyclopedia)monkeypox, rare disease caused by infection with the monkeypox virus, which is related to the viruses that cause smallpox and cowpox. The symptoms of monkeypox, which typically take 1 to 2 weeks to ap...

Mubarak, Muhammad Hosni

(Encyclopedia)Mubarak, Muhammad Hosni hōsˈnē mo͞obəˈrək [key], 1928–2020, president of Egypt (1981–2011). Air force commander (1972–75) and vice president (1975–81) of Egypt, he became president afte...