adj.
1.(used of opinions and actions) far beyond the norm
2.markedly new or introducing radical change
3.arising from or going to the root
4.of or relating to or constituting a linguistic root
5.especially of leaves radical n.
1.(chemistry) two or more atoms bound together as a single unit and forming part of a molecule
2.an atom or group of atoms with at least one unpaired electron
3.a person who has radical ideas or opinions
4.a character conveying the lexical meaning of a logogram
5.a sign placed in front of an expression to denote that a root is to be extracted
6.(linguistics) the form of a word after all affixes are removed
Idiom of the Day
hush money
money paid to persuade someone to be silent about something
The politician was arrested for trying to pay hush money to a victim of the scandal.