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oilbird

(Encyclopedia)oilbird, common name for an owllike, cave-dwelling bird, Steatornis caripensis, belonging to the family Steatornithidae. It spends its days in dark caves, maneuvering by means of a batlike sonar devic...

woodcreeper

(Encyclopedia)woodcreeper or woodhewer, common names for woodpeckerlike birds of tropical forest and brush, constituting about 50 species in the family Dendrocolaptidae. Supported by their stiff tails, they cling v...

Sharon, Ariel

(Encyclopedia)Sharon, Ariel ärˈēĕl shärōnˈ [key], 1928–2014, Israeli general and politician, b. Kfar Malal as Ariel Scheinerman. As a teenager he joined the Haganah, the underground Zionist military brigad...

Easter

(Encyclopedia)Easter [A.S. Eastre, name of a spring goddess], chief Christian feast, commemorating the resurrection of Jesus after his crucifixion. In the West, Easter is celebrated on the Sunday following the full...

combustion

(Encyclopedia)combustion, rapid chemical reaction of two or more substances with a characteristic liberation of heat and light; it is commonly called burning. The burning of a fuel (e.g., wood, coal, oil, or natura...

hantavirus

(Encyclopedia)hantavirus, any of a genus (Hantavirus) of single-stranded RNA viruses that are carried by rodents and transmitted to humans when they inhale vapors from contaminated rodent urine, saliva, or feces. T...

Eriugena, John Scotus

(Encyclopedia)Eriugena or Erigena, John Scotus skōˈtəs ĕryo͞oˈjĭnə; ĕrĭjˈ– ĕrēˈ– [key] [Lat. Scotus=Irish, Eriugena=born in Ireland], c.810–c.877, scholastic philosopher, born in Ireland. About ...

Parkinson's disease

(Encyclopedia)Parkinson's disease or Parkinsonism, degenerative brain disorder first described by the English surgeon James Parkinson in 1817. When there is no known cause, the disease usually appears after age 40 ...

Madonna

(Encyclopedia)Madonna (Madonna Louise Ciccone) mədŏnˈə, chĭkōˈnē [key], 1958–, American p...

leafhopper

(Encyclopedia)leafhopper, common name for small, wedge-shaped leaping insects, cosmopolitan in distribution, belonging to the family Cicadellidae, which comprises some 5,500 species of insects. Some are brightly co...