RADICAL

Definition of RADICAL

(adj)of or relating to or constituting a linguistic root
(adj)especially of leaves; located at the base of a plant or stem; especially arising directly from the root or rootstock or a root-like stem
(noun)(chemistry) two or more atoms bound together as a single unit and forming part of a molecule
(noun)an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule
(noun)a person who has radical ideas or opinions
(noun)(mathematics) a quantity expressed as the root of another quantity
(noun)a character conveying the lexical meaning of a logogram
(noun)(linguistics) the form of a word after all affixes are removed
(adj)(used of opinions and actions) far beyond the norm
(adj)markedly new or introducing radical change
(adj)arising from or going to the root or source