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Freebase(3.00 / 2 votes)Rate this definition: Radicalization. Radicalization is a process by which an individual or group comes to adopt increasingly extreme political, social, or religious ideals and aspirations that reject or undermine the status quo or reject and/or undermine contemporary ideas and expressions of freedom of choice.
Free radical halogenation is a reaction that substitutes a chlorine or a bromine for a hydrogen on an alkane. This reaction is a photochemical one. That is, it occurs only when performed in the presence of uv light (abbreviated hv).Typically, free radical reactions are described in three steps: initiation steps, propagation steps, and termination steps (described below).hat is, it occurs only when performed in the presence of uv light (abbreviated hv). Typically, free radical reactions are described in three steps: initiation steps, propagation steps, and termination steps (described below).