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Rocky Mountain spotted fever
(Encyclopedia) Rocky Mountain spotted fever, infectious disease caused by a rickettsia. The bacterium is harbored by wild rodents and other animals and is carried by infected ticks of several species…holly
(Encyclopedia) holly, common name for members of the Aquifoliaceae, a family of widely distributed trees and shrubs, most numerous in Central and South America. The evergreen English holly (Ilex…citron
(Encyclopedia) citroncitronsĭtˈrən [key], name for a tree (Citrus medica) of the family Rutaceae (orange family), and for its fruit, the earliest of the citrus fruits to be introduced to Europe from…leptospirosis
(Encyclopedia) leptospirosisleptospirosislĕpˌtəspīrōˈsĭs [key], febrile disease caused by bacteria of the genus Leptospirae. The disease may affect dogs, cattle, pigs, sheep, goats, and horses and is…electrode
(Encyclopedia) electrode, terminal through which electric current passes between metallic and nonmetallic parts of an electric circuit. In most familiar circuits current is carried by metallic…brucellosis
(Encyclopedia) brucellosisbrucellosisbr&oomacr;ˌsəlōˈsĭs [key] or Bang's disease, infectious disease of farm animals that is sometimes transmitted to humans. In humans the disease is also known…brass
(Encyclopedia) brass, alloy having copper (55%–90%) and zinc (10%–45%) as its essential components. The properties of brass vary with the proportion of copper and zinc and with the addition of small…bowls
(Encyclopedia) bowls, ancient sport (the bocce of Caesar's Rome is still played by Italians), especially popular in Great Britain and Australia, known as lawn bowls or bowling on the green in the…cartilage
(Encyclopedia) cartilagecartilagekärˈtəlĭj [key], flexible semiopaque connective tissue without blood vessels or nerve cells. It forms part of the skeletal system in humans and in other vertebrates,…pistachio
(Encyclopedia) pistachiopistachiopĭstăshˈēō, pĭstäˈshēō [key], tree or shrub (of the genus Pistacia) of the family Anacardiaceae (sumac family). The species that yields the pistachio nut of commerce…Trending
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