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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...

Darrow, Clarence Seward

(Encyclopedia)Darrow, Clarence Seward, 1857–1938, American lawyer, b. Kinsman, Ohio. He first practiced law in Ashtabula, Ohio. In 1887 he moved to Chicago, where he was corporation counsel for several years and ...

East Saint Louis

(Encyclopedia)East Saint Louis lo͞oˈĭs [key], city (2020 pop. 25,377), St. Clair co., SW Ill., on the Mississippi ...

combustion

(Encyclopedia)combustion, rapid chemical reaction of two or more substances with a characteristic liberation of heat and light; it is commonly called burning. The burning of a fuel (e.g., wood, coal, oil, or natura...

evaporation

(Encyclopedia)evaporation, change of a liquid into vapor at any temperature below its boiling point. For example, water, when placed in a shallow open container exposed to air, gradually disappears, evaporating at ...

falcon

(Encyclopedia)falcon, common name for members of the Falconidae, a heterogeneous family of long-winged birds of prey similar to the hawks but genetically more closely related to the parrots and other birds. True fa...

octopus

(Encyclopedia)octopus, cephalopod mollusk having no shell, eight muscular arms or tentacles, a pouch-shaped body, and two large, highly developed eyes. The prey (crabs, lobsters, and other shellfish) is seized by t...

blog

(Encyclopedia)blog, short for web log, an online, regularly updated journal or newsletter that is readily accessible to the general public by virtue of being posted on a website. Blogs typically report and comment ...

bog

(Encyclopedia)bog, very old lake without inlet or outlet that becomes acid and is gradually overgrown with a characteristic vegetation (see swamp). Peat moss, or sphagnum, grows around the edge of the open water of...

Smith, Dame Maggie

(Encyclopedia)Smith, Dame Maggie (Dame Margaret Natalie Cross), 1934–, English actress. Smith first appeared on stage in Twelfth Night (1952). With her precise, sometimes rapid-fire, articulation and her meticulo...