Columbia Encyclopedia

Search results

192 results found

Spark, Dame Muriel

(Encyclopedia)Spark, Dame Muriel, 1918–2006, Scottish novelist, b. Muriel Sarah Camberg. She lived in Edinburgh, Rhodesia (now Zimbabwe), London, New York, and Rome, and spent her last years in Tuscany. Spark's t...

nonlinear dynamics

(Encyclopedia)nonlinear dynamics, study of systems governed by equations in which a small change in one variable can induce a large systematic change; the discipline is more popularly known as chaos (see chaos theo...

Lessing, Doris

(Encyclopedia)Lessing, Doris, 1919–2013, British novelist, b. Kermanshah, Persia (now Iran) as Doris May Tayler. Largely self-educated, she was brought up on a farm in Southern Rhodesia (now Zimbabwe), and in 194...

disease

(Encyclopedia)disease, impairment of the normal state or functioning of the body as a whole or of any of its parts. Some diseases are acute, producing severe symptoms that terminate after a short time, e.g., pneumo...

psychosis

(Encyclopedia)psychosis sīkōˈsĭs [key], in psychiatry, a broad category of mental disorder encompassing the most serious emotional disturbances, often rendering the individual incapable of staying in contact wi...

hypersensitivity

(Encyclopedia)hypersensitivity, heightened response in a body tissue to an antigen or foreign substance. The body normally responds to an antigen by producing specific antibodies against it. The antibodies impart i...

Apulia

(Encyclopedia)Apulia əpyo͞oˈlēə [key], Ital. Puglia, region, 7,469 sq mi (19,345 sq km), S Italy, bordering on the Adriatic Sea in the east and the Strait of Otranto and Gulf of Ta...

COVID-19

(Encyclopedia)COVID-19, contagious viral disease caused by severe acute respiratory syndrome coronavirus 2, or SARS-CoV-2, a coronavirus that is genetically related to SARS-CoV, which causes SARS. Symptoms generall...

housing

(Encyclopedia)housing, in general, living accommodations available for the inhabitants of a community. Throughout the 19th cent., with the advent of the Industrial Revolution, housing as a problem worsened as urban...

metabolite

(Encyclopedia)metabolite, organic compound that is a starting material in, an intermediate in, or an end product of metabolism. Starting materials are substances, usually small and of simple structure, absorbed by ...