Other Definitions
radical (dict)

Radical

• 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 a counterpart to reactionary; see Radical Republican
• can refer to member of a Radical Party
• can refer to a progressive liberal, like e.g. the Radicals, a group of left-wing MPs in the 19th-century British Parliament
• 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 $\backslash sqrtn\{a\}$, 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 part of a Chinese character (see radical (Chinese character)).

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