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acids and bases

(Encyclopedia) acids and bases, two related classes of chemicals; the members of each class have a number of common properties when dissolved in a solvent, usually water. Another theory that…

parent and child

(Encyclopedia) parent and child, legal relationship, created by biological (birth) relationship or by adoption, that confers certain rights and duties on parent and child; in some states the courts…

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…

Nuneaton and Bedworth

(Encyclopedia) Nuneaton and BedworthNuneaton and Bedworthnənēˈtən [key], district (1991 pop. 115,300), Warwickshire, central England. The district primarily comprises the city of Nuneaton and the…

Trinidad and Tobago

(Encyclopedia) CE5 Trinidad and TobagoTrinidad and Tobagotrĭnˈĭdăd, təbāˈgō [key], officially Republic of Trinidad and Tobago, republic (2015 est. pop. 1,222,000), 1,980 sq mi (5,129 sq km), West…

Tristram and Isolde

(Encyclopedia) Tristram and IsoldeTristram and Isoldetrĭsˈtrəm, ĭsōlˈdə, ĭzōlˈ– [key], medieval romance. The earliest extant version (incomplete) was written (c.1185) by Thomas of Britain in Anglo-…

Troilus and Cressida

(Encyclopedia) Troilus and CressidaTroilus and Cressidatroiˈləs, krĕsˈĭdə [key], a medieval romance distantly related to characters in Greek legend. Troilus, a Trojan prince (son of Priam and Hecuba…

supply and demand

(Encyclopedia) supply and demand, in classical economics, factors that are said to determine price, by correlating the amount of a given commodity producers hope to sell at a certain price (supply),…