The process or act of making something caustic; chemical treatment to produce caustic properties or to render speech or behavior harsh and cutting.
From caustic plus the suffix -ize (to make or treat) plus -ation (noun of action). This is a technical formation common in chemistry and specialized discourse.
Industrial chemistry uses 'causticization' for specific processes—particularly in pulp and paper manufacture where caustic soda is recycled. It's a word that proves chemistry needs very precise vocabulary for specific processes.
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