Etymology
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radicalize (v.)

1820, transitive, "make radical, cause to conform to radical ideals," from radical (adj.) + -ize. Intransitive sense of "become radical" is by 1828. Related: Radicalized; radicalizing.

updated on November 12, 2021

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Definitions of radicalize from WordNet

radicalize (v.)
make more radical in social or political outlook;
Her work in the developing world radicalized her
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.