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typhoid fever

(Encyclopedia) typhoid fever acute, generalized infection caused by Salmonella typhi. The main sources of infection are contaminated water or milk and, especially in urban communities, food handlers…

rickets

(Encyclopedia) rickets or rachitisricketsrəkīˈtĭs [key], bone disease caused by a deficiency of vitamin D or calcium. Essential in regulating calcium and phosphorus absorption by the body, vitamin D…

Cardigan Welsh corgi

(Encyclopedia) Cardigan Welsh corgi, breed of short, long-bodied working dog believed to have been introduced into Wales from Central Europe c.1200 b.c. It stands about 12 in. (30.5 cm) high at the…

infarction

(Encyclopedia) infarction, blockage of blood circulation to a localized area or organ of the body resulting in tissue death. Infarctions commonly occur in the spleen, kidney, lungs, brain, and heart…

aorta

(Encyclopedia) CE5 Aorta aortaaortaāôrˈtə [key], primary artery of the circulatory system in mammals, delivering oxygenated blood to all other arteries except those of the lungs. The human aorta…

Rottweiler

(Encyclopedia) RottweilerRottweilerrŏtˈwīlər [key], breed of sturdy working dog developed from a Roman cattle dog introduced into S Germany more than 1,900 years ago. It stands from 213&fslsh;4…

pleura

(Encyclopedia) pleurapleurapl&oobreve;rˈə [key], membranous lining of the upper body cavity and covering for the lungs. The pleura is a two-layered structure: the parietal pleura lines the walls…

Perseus, in Greek mythology

(Encyclopedia) PerseusPerseuspûrˈsēəs, –s&oobreve;s [key], in Greek mythology, son of Zeus and Danaë. His grandfather, Acrisius, had been warned by an oracle that his grandson would kill him and…

Gros Ventre

(Encyclopedia) Gros VentreGros Ventregrō văNˈtrə [key] [Fr.,=big belly], name used by the French for two quite distinct Native North American groups. One was the Atsina, a detached band of the…

fund-raising

(Encyclopedia) fund-raising, large-scale soliciting of voluntary contributions, especially in the United States. Fund-raising is widely undertaken by charitable organizations, educational…