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phlebitis

(Encyclopedia) phlebitisphlebitisfləbīˈtĭs [key], inflammation of a vein. Phlebitis is almost always accompanied by a blood clot, or thrombus, in the affected vein, a condition known as…

pitchblende

(Encyclopedia) pitchblendepitchblendepĭchˈblĕndˌ [key], dark, lustrous, heavy mineral, a source of radium and uranium. Largely natural uranium oxides, triuranium octaoxide (U3O8) and uranium dioxide…

Orvieto

(Encyclopedia) OrvietoOrvietoōrvyĕˈtō [key], city (1991 pop. 21,419), in Umbria, central Italy, on the Poglia River. Situated at the top of a rocky hill, it is a tourist and pilgrimage center.…

Paraná, river, Brazil, Paraguay, and Argentina

(Encyclopedia) Paraná, river, c.2,000 mi (3,200 km) long, formed by the junction of the Paranaíba and the Rio Grande, SE Brazil. It has the second largest drainage system in South America. It flows…

squill

(Encyclopedia) squill, common name for two genera of Old World bulbous plants of the family Liliaceae (lily family). The horticulturists' squill is any plant of the genus Scilla, mostly spring-…

Ellesmere Island

(Encyclopedia) Ellesmere Island, 82,119 sq mi (212,688 sq km), c.500 mi (800 km) long, in the Arctic Ocean, N Nunavut Territory, Canada; second largest and northernmost island of the Arctic…

Carducci, Giosuè

(Encyclopedia) Carducci, GiosuèCarducci, Giosuèjōz&oomacr;āˈ [key]Carducci, Giosuè kärd&oomacr;tˈchē [key], 1835–1907, Italian poet and teacher. He was professor of literature at the Univ. of…

tang, in zoology

(Encyclopedia) tang, common name for certain members of the Acanthuridae, a family of mostly small, mainly reef-dwelling tropical fishes with compressed bodies and small mouths and teeth. Other…