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Lassa fever

(Encyclopedia)Lassa fever lăsˈə [key], an acute viral disease occurring mostly in W Africa, characterized by high fever, muscle aches, mouth ulcers, and bleeding in the skin in more severe cases. The disease was...

Williams, Sir Bernard

(Encyclopedia)Williams, Sir Bernard (Sir Bernard Arthur Owen Williams), 1929–2003, English philosopher, grad. Oxford (1951). One of the most important philosophers of his era, he is credited with reviving the fie...

tinnitus

(Encyclopedia)tinnitus, the hearing of sounds in the absence of any external sound, also known as ringing in the ears. The sounds may be perceived as hissing, whistling, buzzing, swooshing, roaring, or clicking in ...

Quetta

(Encyclopedia)Quetta kwĕˈtə [key], city (1998 pop. 560,307), capital of Baluchistan prov., W central Pakistan, at an altitude of c.5,500 ft (1,675 m), ringed by mountains. Deriving its name from the Pashto word ...

multiple birth

(Encyclopedia)multiple birth, bringing forth of more than one offspring at birth. Although many smaller mammals bear several young at a time, multiple births are relatively uncommon in humans and other primates. Tw...

Mandaeans

(Encyclopedia)Mandaeans or Mandeans mănˈdēənz [key], a small religious sect who maintain an ancient belief resembling that of Gnosticism and that of the Parsis. They are also known as Christians of St. John, Na...

De Quincey, Thomas

(Encyclopedia)De Quincey, Thomas də kwĭnˈsē [key], 1785–1859, English essayist. In 1802 he ran away from school and tramped about the country, eventually settling in London. His family soon found him and ente...

hydrazine

(Encyclopedia)hydrazine hīˈdrəzēnˌ [key], chemical compound, formula NH2NH2, m.p. 1.4℃, b.p. 113.5℃, specific gravity 1.011 at 15℃. It is very soluble in water and soluble in alcohol. At ordinary tempera...

anise

(Encyclopedia)anise ănˈĭs [key], annual plant (Pimpinella anisum) of the family Umbelliferae (parsley family), native to the Mediterranean region but long cultivated elsewhere for its aromatic and medicinal qual...