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Comprehensive
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antiradical combined form of radical.
carbonyl a metal compound containing a radical of one atom of carbon and one of oxygen, or this radical itself.
disulfide a chemical compound in which two atoms of sulfur are combined with another element or radical.
drastic severe or extreme; radical. [1/2 definitions]
ethyl in chemistry, containing the monovalent hydrocarbon radical. [2/3 definitions]
extremist a person who takes a radical stand and encourages radical action or thinking, esp. in politics. [1/3 definitions]
freak1 something highly unusual and seemingly without cause, such as a snowstorm in summer or a sudden, radical change of mind. [1/4 definitions]
Jacobin a member of a society of radical democrats that used terrorist tactics during the French Revolution. [2/3 definitions]
left wing a faction of a political party or other group that advocates liberal reform or radical, revolutionary change, esp. in the social, political, or economic order. (Cf. right wing.)
Menshevik a member of the Russian Social Democratic party that opposed the more radical Bolsheviks during the Russian Revolution. [1/2 definitions]
monad an atom, element, or radical with a valence of one. [1/3 definitions]
monobasic of or designating an acid molecule containing one hydrogen atom that is replaceable by a metal or positive radical.
New Left a radical political movement from the 1960s advocating revolutionary changes in the political, social, and economic structure of society, esp. U.S. society.
phenyl the monovalent radical that forms the basis of several aromatic compounds, such as benzene, phenol, and aniline.
phosphide a chemical compound made of trivalent phosphorus and a radical or another element.
Progressive Party any of three short-lived U.S. political parties of the early and mid-twentieth century that advocated policies considered progressive or radical in their time.
propyl a monovalent organic radical of three carbon and seven hydrogen atoms.
radicalism the advocacy of radical political or social changes. [1/2 definitions]
radicalize to make or become radical, esp. in political or social ideas.
radicand in mathematics, the number, variable, or quantity under a radical sign.
sans-culotte any extreme radical or revolutionary. [1/2 definitions]