Answer: radicals

AnswerCrossword Clue
RADICALSExtremists
RADICALSReaction-prone atoms
RADICALSExtremists on the political scene.
RADICALSLeft-wingers.
RADICALSExtremists.
RADICALSLeft-wingers
RADICALSGroup left of liberals
RADICALSSquare-root signs
RADICALSExtreme group
radicalsA person who advocates thorough or complete political or social reform; a member of a political party or part of a party pursuing such aims
radicalsA quantity forming or expressed as the root of another
radicalsThe root or base form of a word
radicalsAny of the basic set of 214 Chinese characters constituting semantically or functionally significant elements in the composition of other characters and used as a means of classifying characters in dictionaries
radicalsRADICAL, a group of atoms that act as a unit in chemical compounds
radicalsA radical sign
radicalsA group of atoms behaving as a unit in a number of compounds