Radical
25888
225549106
2008-07-14T07:14:05Z
HenryLi
149793
'''Radical''' (from Latin ''radicis'', genitive of ''radix'' "root") can refer to many different things and concepts.
==Mathematics==
*The symbol used to indicate the [[nth root]] of a number
*[[Radical of an algebraic group]], a concept in algebraic group theory
*[[Radical of an ideal]], an important concept in abstract algebra
*[[Radical of an integer]], a concept in number theory
*[[Symmetric bilinear form]], a concept in linear algebra
*[[Radical of a Lie algebra]], a concept in Lie theory
==Chemistry==
*[[Radical (chemistry)]] or free radical, atomic or molecular species with unpaired electrons
==Linguistics==
*[[Radical consonant]], which involves the root of the tongue
*[[Radical (Chinese character)]], part of a Chinese character under which it is indexed in a dictionary (also called bùshǒu 部首)
*One of the three consonants in a Semitic trilateral or quadrilateral root
==Society==
*[[Political radicalism]]
**[[Radicalism (historical)]], the Radical Movement which began in late 18th century Britain and spread to continental Europe and Latin America in the 19th century
**[[Radical left]], another term for the far left
**[[Radical right]], another term for the far right
**[[Extremism]], political standpoints that are perceived as revolutionary or extreme
*[[Radical Whigs]], influential early writers on Radicalism
*[[Radical Republican (USA)]], a member of an influential group of American politicians during the Civil War reconstruction
*[[Radical Party]], a political party
*[[Radicals (UK)]], parliamentary progressives who were part of the nineteenth-century Liberal coalition
*[[Industrial Radicals]], members of the fictional Industrial Radical Party
*[[Religious radicalism]] <!-- very widely used term ; article needed -->
==Businesses and organizations==
*[[Radical Sportscars]], an English sports car maker
*[[Radical Entertainment]], a video game developer based in Vancouver, Canada
*[[Free Radical Design]], a video game developer based in Nottingham, England
*[[Free Radicals (band)]], a jazz-funk musical group from Houston, TX
*[[Radical Matters]], a record label
*[[Free Radical Centre]]
==Music albums==
*[[Radical (Smack album)|''Radical'' (Smack album)]], Smack's fourth studio album, released in 1988
==Other==
*In [[cabinet making]], another way of saying external plinth{{fact|date=February 2008}}
*[[Radical Baroque]], in architecture
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