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Radical may refer to:

Politics and ideology[edit]

In politics[edit]

Other ideologies[edit]

  • Radical chic, a term coined by Tom Wolfe to describe the pretentious adoption of radical causes by celebrities, socialites, and high society
  • Radical feminism, a current within feminism that focuses on patriarchy as a system of power
  • Radical Islam, or Islamic extremism
  • Radical veganism, a radical interpretation of veganism, usually combined with anarchism
  • Radical Reformation, an Anabaptist movement concurrent with the Protestant Reformation

In science, technology, and mathematics[edit]


Other sciences[edit]

  • Radical (chemistry), an atom, molecule, or ion with unpaired valence electron(s), that is likely to take part in chemical reactions
  • Radical surgery, surgery carried out in which diseased tissue or lymph nodes are removed from a diseased organ

In linguistics[edit]

  • Radical verb (or 'radical-changing' verb), in inflected languages, a verb with strong inflection
  • Root (linguistics), also called a "radical", the form of a word after any prefixes and suffixes are removed
  • Radical (Chinese characters), part of a Chinese character under which it is indexed in a dictionary (also called bùshǒu 部首)
  • Radical, one of the three consonants in a Semitic root
  • Radical consonant, a consonant articulated with the root of the tongue

Businesses and organizations[edit]

In arts and entertainment[edit]



In other arts[edit]

Places in the United States[edit]

See also[edit]