Columbia Encyclopedia

Search results

500 results found

Wyclif, John

(Encyclopedia)Wyclif, Wycliffe, Wickliffe, or Wiclif, John all: wĭkˈlĭf [key], c.1328–1384, English religious reformer. A Yorkshireman by birth, Wyclif studied and taught theology and philosophy at Oxford. He ...

white-eye

(Encyclopedia)white-eye, common name for warblerlike, arboreal birds, including 85 species in the family Zosteropidae, and for certain species of ducks. The members of Zosteropidae, with the exception of a few spec...

methadone

(Encyclopedia)methadone mĕthˈədōnˌ, –dŏnˌ [key], synthetic narcotic similar in effect to morphine. Synthesized in Germany, it came into clinical use after World War II. It is sometimes used as an analgesic...

muscular dystrophy

(Encyclopedia)muscular dystrophy dĭsˈtrōfē [key], any of several inherited diseases characterized by progressive wasting of the skeletal muscles. There are five main forms of the disease. They are classified ac...

chronic fatigue syndrome

(Encyclopedia)chronic fatigue syndrome (CFS) or myalgic encephalomyelitis (ME), collection of persistent, debilitating symptoms, the most notable of which is severe, lasting fatigue. It is also known as systemic ex...

DNA fingerprinting

(Encyclopedia)DNA fingerprinting or DNA profiling, any of several similar techniques for analyzing and comparing DNA from separate sources, used especially in law enforcement to identify suspects from hair, blood, ...

drug resistance

(Encyclopedia)drug resistance, condition in which infecting bacteria can resist the destructive effects of drugs such as antibiotics and sulfa drugs. Drug resistance has become a serious public health problem, sinc...

heath, in botany

(Encyclopedia)CE5 Rhododendron, Rhododendron maximum, a member of the heath family heath, in botany, common name for some members of the Ericaceae, a family of chiefly evergreen shrubs with berry or capsule fru...

fire fighting

(Encyclopedia)fire fighting, the use of strategy, personnel, and apparatus to extinguish, to confine, or to escape from fire. Ancient Rome is known to have had a fire department consisting by the 1st cent. of app...

nebula

(Encyclopedia)nebula nĕbˈyo͝olə [key] [Lat.,=mist], in astronomy, observed manifestation of a collection of highly rarefied gas and dust in interstellar space. Prior to the 1960s this term was also applied to b...

Browse by Subject