a quantity expressed as the root of another quantity
of or relating to or constituting a linguistic root
“a radical verb form”
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
“radical leaves”
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
“in the body free radicals are high-energy particles that ricochet wildly and damage cells”
two or more atoms bound together as a single unit and forming part of a molecule
a character conveying the lexical meaning of a logogram
a person who has radical ideas or opinions
arising from or going to the root or source
“a radical flaw in the plan”