A group of atoms behaving as a unit in a number of compounds
The root or base form of a word
Any 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
A quantity forming or expressed as the root of another
A person who advocates thorough or complete political or social reform; a member of a political party or part of a party pursuing such aims
RADICAL, a group of atoms that acts as a unit in chemical compounds [n]
A radical sign
RADICAL, a group of atoms that act as a unit in chemical compounds [n]