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addition
addition fundamental operation of arithmetic, denoted by +. In counting, a + b represents the number of items in the union of two collections having no common members (disjoint sets), having respectively a and b members. In geometry a + b might, for example, represent the area of the union ...
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subtraction
subtraction fundamental operation of arithmetic; the inverse of addition. If a and b are real numbers (see number ), then the number a - b is that number (called the difference) which when added to b (the subtractor) equals a (the subtrahend). In terms of addition the symbol - b is call...
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analgesic
analgesic , any of a diverse group of drugs used to relieve pain. Analgesic drugs include the nonsteroidal anti-inflammatory drugs (NSAIDs) such as the salicylates , narcotic drugs such as morphine , and synthetic drugs with morphinelike action such as meperidine (Demerol) and propoxyphene (Da...
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food additives
food additives substances added to foods by manufacturers to prevent spoilage or to enhance appearance, taste, texture, or nutritive value. By quantity, the most common food additives are flavorings, which include spices, vinegar, synthetic flavors, and, in the greatest abundance, sweeteners (e.g.,...
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saturation
saturation of an organic compound, condition occurring when its molecules contain no double or triple bonds and thus cannot undergo addition reactions. For example, ethane (H 3 C-CH 3 ) is a saturated compound. A compound is called unsaturated if it can undergo addition reactions. In the unsaturate...
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health maintenance organization
health maintenance organization (HMO), type of prepaid medical service in which members pay a monthly or yearly fee for all health care, including hospitalization. The term "health maintenance organization" was coined by a health policy analyst, Dr. Paul Ellwood, in the early 1970s. Most HMOs i...
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Jewish liturgy
Jewish liturgy rites, observances, and procedures of Judaism. Communal prayer, with a quorum of ten men (or in some modern communities, ten people), replaced the priests of the Temple cult. There are three daily services, with additional ones for the Sabbath and festivals. The fixed components ar...
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University of Arkansas
University of Arkansas mainly at Fayetteville; land-grant and state supported; coeducational; chartered 1871, opened 1872; called Arkansas Industrial Univ. until 1899. The Univ. of Arkansas for Medical Sciences is at Little Rock. Additional campuses are located at Monticello and Pine Bluff.
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Bridgetown
Bridgetown city (1990 pop. 5,928), capital, commercial center, and chief port of Barbados , West Indies. It is, in addition, a tourist and health resort. Sugar, rum, and molasses are the leading exports, and Bridgetown also serves as an important financial center and transshipment point. The city ...
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John Flanagan
John Flanagan , 1865-1952, American sculptor and medalist. In 1932 he designed the George Washington silver quarter. In addition to medals and plaquettes, he produced larger works, including a clock for the Library of Congress and the Bulkeley Memorial, Aetna Life Insurance Building, Hartford, Conn....
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