What is the etymology of the word, Radical?

posted Mar 4, 2016, 10:32 AM by VAL-U-PRO CONSULTING GROUP, LLC - SRIKANTH KIDAMBI   [ updated Mar 4, 2016, 10:33 AM ]
What is the etymology of the word, "Radical"? What needs to be done to bring the best in the society, and limit the negative connotations that comes with the word, "Radical"? Is there a connection between this word, and the areas of Chemistry & Epidemiology?
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