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reduction

(Encyclopedia)reduction, in chemistry: see oxidation and reduction. ...

oxidation and reduction

(Encyclopedia)oxidation and reduction, complementary chemical reactions characterized by the loss or gain, respectively, of one or more electrons by an atom or molecule. Originally the term oxidation was used to re...

crusher

(Encyclopedia)crusher, machine used to reduce materials such as ore, coal, stone, and slag to particle sizes that are convenient for their intended uses. Crushers operate by slowly applying a large force to the mat...

Gramm-Rudman-Hollings Act

(Encyclopedia)Gramm-Rudman-Hollings Act, officially the Balanced Budget and Emergency Deficit Control Act of 1985, U.S. budget deficit reduction measure. The law provided for automatic spending cuts to take effect ...

Bears Ears National Monument

(Encyclopedia)Bears Ears National Monument, 201,876 acres (81,696 hectares), SE Utah; est. 2016. Named for prominent twin buttes, the national monument as proclaimed by President Obama was more than six times large...

polarography

(Encyclopedia)polarography pōˌlərŏgˈrəfē [key], in chemistry, method for analyzing the composition of a dilute electrolytic solution (see electrolyte). Two electrodes are placed in the solution: One has a fi...

redox

(Encyclopedia)redox rēˈdŏks [key]: see oxidation and reduction. ...

anion

(Encyclopedia)anion ănˈīˌən [key], atom or group of atoms carrying a negative charge. The charge results because there are more electrons than protons in the anion. Anions can be formed from nonmetals by reduc...

Brown, Walter Folger

(Encyclopedia)Brown, Walter Folger fōlˈjər [key], 1869–1961, American cabinet officer, b. Massillon, Ohio. A lawyer of Toledo, Ohio, he became prominent in Republican politics and was (1927–29) Assistant Sec...

Destutt de Tracy, Antoine Louis Claude, Comte

(Encyclopedia)Destutt de Tracy, Antoine Louis Claude, Comte äNtwänˈ lwē klōd kôNt dĕstütˈ də träsēˈ [key], 1754–1836, French philosopher and psychologist. Although active in the Napoleonic government...