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Radical means pertaining to roots, or at or in the roots. It is derived from the Latin word radix, which means "root". It may refer to: Wikipedia does not have an article with this exact name. ... Wiktionary is a Wikimedia Foundation project intended to be a free wiki dictionary (hence: Wiktionary) (including thesaurus and lexicon) in every language. ...

In mathematics:

• The radical symbol used to indicate the nth root of a number a, written as , which is a number whose n-th power is a
• 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
• Radical of a bilinear form, a concept in linear algebra

In science: In mathematics, an nth root of a number a is a number b, such that bn=a. ... In mathematics, an algebraic group G contains a unique maximal normal solvable subgroup; and this subgroup is closed. ... In ring theory, a branch of mathematics, the radical of an ideal is a kind of completion of the ideal. ... In mathematics, a square-free integer is one divisible by no perfect square, except 1. ... In mathematics, a bilinear form on a vector space V over a field F is a mapping V × V → F which is linear in both arguments. ...

• Radical (chemistry), atomic or molecular species with unpaired electrons

In linguistics: For other uses, see radical. ...

• Radical consonant, involves the root of the tongue
• Radical (Chinese character), in grammatology, part of a Chinese character

In politics: Radical consonants are articulated with the root (base) of the tongue in the throat. ... The left part of mā, a Chinese character meaning mother, is a radical that means woman A radical (from Latin radix, meaning root) is a basic identifiable component of every Chinese character. ...

• Radicalism, any of various ideologies or political groupings
• a supporter of a revolutionary social movement, opposed to liberalism and conservatism, particularly a supporter of libertarian socialism or the far-left
  • a supporter of the "radical right" variety of the far right
  • a neoconservative
  • a supporter of the Radical Left
  • The term radical is used by the right wing in the United States to describe elements of the Democratic Party
• Radicalization, which refers to the transformation from passiveness or activism to more revolutionary, extremist, or militant postures. While the term "radical" can be commonly associated with far-left movements, "radicalization" makes no such distinction.

• a supporter of Radicalism (historical), a movement which developed in 18th and 19th century Britain with aims including electoral reform and republicanism, and subsequent leftist liberal movements in continental Europe and Latin America
  • Radical Whigs, influential early writers on Radicalism
• a Radical Republican (an influential group of American politicians during the Civil War reconstruction)
• a Radical Party member
• a supporter of Radicals (UK), parliamentary progressives who were predecessors of the Liberal Party (UK)

In commerce: The term Radical (latin radix meaning root) has been used since the late 18th century as a label in political science for those favoring or trying to produce thoroughgoing or extreme political reforms which can include changes to the social order to a greater or lesser extent. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... American Civil Rights Movement is one of the most famous social movements of the 20th century. ... Liberalism is an ideology, philosophical view, and political tradition which holds that liberty is the primary political value. ... This article deals with conservatism as a political philosophy. ... Libertarian socialism includes a group of political philosophies that aims to create a society without political, economic or social hierarchies - a society within which individuals freely co-operate together as equals. ... The term far left refers to the relative position a group or person occupies within the political spectrum. ... It has been suggested that this article or section be merged into far right. ... Neoconservatism is a political current and movement, mainly in the United States, which is generally held to have emerged in the 1960s, coalesced in the 1970s, and has had a significant presence in the administrations of Ronald Reagan and George W. Bush. ... Since the early 20th century, Radical Left has been used as an umbrella term to describe those on the political left who adhere explicitly and openly to revolutionary socialism, communism, or anarchism. ... The Democratic Party is one of the two major United States political parties. ... This article does not cite its references or sources. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Extremism is a term used to describe either ideas or actions thought by critics to be unwarranted or at least beyond what is acceptable in a civilised society. ... The word militant has come to refer to any individual or party engaged in aggressive physical or verbal combat, normally for a cause. ... The term Radical (latin radix meaning root) has been used since the late 18th century as a label in political science for those favoring or trying to produce thoroughgoing political reforms which can include changes to the social order to a greater or lesser extent. ... The Radical Whigs were a group of British political commentators who played a relevant role in the American Revolution. ... The Radical Republicans were an influential faction of American politicians in the Republican party during the American Civil War and Reconstruction eras, 1860-1876. ... A number of political organizations have called themselves the Radical Party, or have Radical as part of their name. ... The Radicals were a political grouping in Britain in the early to mid 19th century. ... This article is about the historic Liberal Party. ...

• Radical Sportscars or Radical Motorsport, sports car maker in England [1]
• Free Radical Design, a video game developer based in Nottingham, England

It has been suggested that this article or section be merged with Radical Motorsport. ... Wikipedia does not have an article with this exact name. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... The companys original logo (1998-2006) Free Radical Design is a video game developer, based in Nottingham, England. ...

See also

• Radicle

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