(historical, 19th-century Britain) A member of the most progressive wing of the Liberal Party; someone favouring social reform (but generally stopping short of socialism).

present participle of radicalize

the process of radicalizing

plural of radical

(transitive) To make radical. / (intransitive) To become radical; to adopt a radical political stance.

Any of various radical social or political movements that aim at fundamental change in the structure of society

present participle of radicate

Third-person singular simple present indicative form of radicate

(transitive, rare) To cause to take root; to plant or establish firmly. / (intransitive, obsolete) To take root; to become established. / (transitive, arithmetic, rare) To extract the root of a number.

Rooted; deep-seated; firmly established. / (botany) Having a root; growing from a root; (of a fungus) having rootlike outgrowths at the base of the stipe. / (zoology) Fixed at the bottom as if rooted.