Radical

Definition of radical:

One who advocates radical changes in government or social institutions, especially such changes as are intended to level class inequalities; -- opposed to conservative.
( linguistics) the form of a word after all affixes are removed; " thematic vowels are part of the stem"
a person who has radical ideas or opinions
A primitive word; a radix, root, or simple, underived, uncompounded word; an etymon.
A primitive letter; a letter that belongs to the radix.
A characteristic, essential, and fundamental constituent of any compound; hence, sometimes, an atom.
A radical quantity. See under Radical, a.
One who advocates radical changes in government or social institutions, especially such changes as are intended to level class inequalities; - opposed to conservative.
A simple word, or root, from which other words are formed; a person who holds extreme views and takes extreme measures.
Radicalness.
A root: a primitive word or letter: one who advocates radical reform: ( chem.) the base of a compound.
A root; primitive word; one who advocates a fundamental change in principles of government.
An extremist.
The primitive part of a word; a root; radicle.
A quantity of which the root is required.
A primitive word; a radix, root, or simple underived uncompounded word; a letter that belongs to the root; one who advocatea radical reform, or extreme changes of a democratic character in the state; the base of a compound. See Radix.
( linguistics) of or relating to or constituting a linguistic root; " a radical verb form"
arising from or going to the root; " a radical flaw in the plan"
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; " basal placentation"; " radical leaves"
Of or pertaining to the root; proceeding directly from the root.
Hence: Of or pertaining to the root or origin; reaching to the center, to the foundation, to the ultimate sources, to the principles, or the like; original; fundamental; thorough- going; unsparing; extreme; as, radical evils; radical reform; a radical party.
Belonging to, or proceeding from, the root of a plant; as, radical tubers or hairs.
Proceeding from a rootlike stem, or one which does not rise above the ground; as, the radical leaves of the dandelion and the sidesaddle flower.
Relating, or belonging, to the root, or ultimate source of derivation; as, a radical verbal form.
Of or pertaining to a radix or root; as, a radical quantity; a radical sign. See below.
Specifically, a group of two or more atoms, not completely saturated, which are so linked that their union implies certain properties, and are conveniently regarded as playing the part of a single atom; a residue; -- called also a compound radical. Cf. Residue.
A radical vessel. See under Radical, a.
Pertaining to the root or origin; original; extreme; as, a radical difference of opinion; in mathematics, showing or containing the root of a number; pertaining to a political party of advanced views.
1. In chemistry, a group of atoms passing as such from one compound to another, acting thus like a single atom. 2. The haptophore group of an antibody. 3. Relating to the root or cause, thorough; as a radical operation, one which removes every trace of possibly diseased tissue, or makes recurrence impossible.
A substance which admits combination with a simple body. Applied to active treatment for elimination of a diseased condition.
Pertaining to the root, or origin: original: reaching to the principles: implanted by nature: not derived: serving to originate: ( bot.) proceeding immediately from the root: ( politics) ultra- liberal, democratic.
Original; rooted; implanted by nature; reaching to the principles; pertaining to radicals.
Proceeding from or pertaining to the root; essential; fundamental.
Thoroughgoing; unsparing; extreme.
Pertaining to the root or origin; original; fundamental; implanted by nature; primitive; underived; proceeding immediately from the root.
Pert. to or arising from the root; fundamental; implanted by nature; constitutional; original; not derived or compounded; primitive; in bot., proceeding from a point close to the summit or crown of the root, applied to leaves close to the ground clustered at the base of a flower- stalk; complete; thorough.
Arising from the root close to the ground, as basal leaves.
[ Latin] Arising from the root close to the ground, as basal leaves( bot.).

Usage examples for radical

On the whole, she was never at her ease with Mrs. Fox, who had rarely a good word for her neighbours and voiced strangely radical sentiments concerning Life and its obligations. Banked Fires by E. W. (Ethel Winifred) Savi
No; I have looked yesterday and to- day in our paper, but there was nothing- Some of the Radical papers reported it. Marcella by Mrs. Humphry Ward
Here again, however, we have a radical departure from Schiller's usual method; for what is actually done at this seemingly important meeting is, after all, in itself rather insignificant, and without direct influence upon the subsequent course of events. The Life and Works of Friedrich Schiller by Calvin Thomas
Was Lincoln any more radical than Douglas? Children of the Market Place by Edgar Lee Masters

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