Radical

Radical is derived from the Latin word radix, which means "root". In various fields of endeavor, it can mean:

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;Sciences

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• in chemistry, either an atom or molecule with at least one unpaired electron, or a group of atoms, charged or uncharged, that act as a single entity in reaction. These two definitions are not functionally identical. (see radical (chemistry)).
• in mathematics:
• the n-th radical or root of a number a, written as $sqrt\{a\}$, which is a number whose n-th power is a (see radical (mathematics)).
• the radical of an algebraic group is a concept in algebraic group theory.
• the radical of an ideal is an important concept in abstract algebra.
• in linguistics, a radical consonant involves the root of the tongue.
• in grammatology, it is part of a Chinese character (see radical (Chinese character)).

;Social sciences

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• in sociology:
• one who advocates thoroughgoing analysis or change "at the root"
• in politics:
• can refer to a supporter of a revolutionary social movement
• can refer to the Radicalism (historical) movement which developed in 19th century Britain with the primary aim of electoral reform
• can refer to Radicalism (historical) left wing liberal movements in continental Europe
• can refer to a counterpart to reactionary; see Radical Republican
• can refer to member of a Radical Party
• can refer to a progressive liberal, e.g. the Radicals (UK), a group of left-wing MPs in the 19th-century British Parliament

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Radical related Images and Photos (experimental)

Radical Rhythms Guitar Toy	Antoinette Radical Red Tonner Doll Outfit	Swat Kats: The Radical Squadron Complete Series (5 DVD Set)	Thomas Paine Radical Political Writer and Freethinker
Thomas Paine Radical Political Writer and Freethinker	Radical Henry "Orator" Hunt Begins His Speech to Crowd Gathered at St. Peter's Fields Manchester	American Heroes In the Fight Against Radical Islam (Hardcover) Book	Traitor to His Class The Privileged Life and Radical Presidency of Franklin Delano Roosevelt (Hardcover) Book