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cultivation

(Encyclopedia)cultivation, tilling or manipulation of the soil, done primarily to eliminate weeds that compete with crops for water and nutrients. Cultivation may be used in crusted soils to increase soil aeration ...

boring mill

(Encyclopedia)boring mill, machine tool used to increase the size of a hole previously made in a workpiece, usually with the purpose of obtaining a required degree of finish and accuracy in the final hole. In a hor...

value-added tax

(Encyclopedia)value-added tax (VAT), levy imposed on business at all levels of the manufacture and production of a good or service and based on the increase in price, or value, provided by each level. Because the c...

ringbone

(Encyclopedia)ringbone, bony outgrowth on the front and sides of the pastern bones of a horse's foot, resulting from inflammation or faulty conformation of the bones. The outgrowths increase with sprains and other ...

warfarin

(Encyclopedia)warfarin wôrˈfərĭn [key], anticoagulant used to treat blood clots. In large doses it causes bleeding, and in patients with genetic variations that increase sensitivity to the drug and decrease the...

biofeedback

(Encyclopedia)biofeedback, method for learning to increase one's ability to control biological responses, such as blood pressure, muscle tension, and heart rate. Sophisticated instruments are often used to measure ...

noise pollution

(Encyclopedia)noise pollution, human-created noise harmful to health or welfare. Transportation vehicles are the worst offenders, with aircraft, railroad stock, trucks, buses, automobiles, and motorcycles all produ...

Cotabato

(Encyclopedia)Cotabato kōtäbäˈtō [key], city, Maguindanao prov., W Mindanao, the Philippines, near the ...

Estrada Cabrera, Manuel

(Encyclopedia)Estrada Cabrera, Manuel mänwĕlˈ esträˈᵺä käbrāˈrä [key], 1857–1924, president of Guatemala (1898–1920). He ruled as an absolute dictator, and there were several revolutionary movements...

McAllen

(Encyclopedia)McAllen, city (1990 pop. 84,021), Hidalgo co., extreme S Tex., on the Rio Grande; inc. 1911. It is a port of entry and a packing and processing center for the citrus fruit, truck crops, and other prod...