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Definition of Radical

Radical

  1. Of or pertaining to the root; proceeding directly from the root.
  2. 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.
  3. Belonging to, or proceeding from, the root of a plant; as, radical tubers or hairs.
  4. 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.
  5. Relating, or belonging, to the root, or ultimate source of derivation; as, a radical verbal form.
  6. Of or pertaining to a radix or root; as, a radical quantity; a radical sign. See below.
  7. A primitive word; a radix, root, or simple, underived, uncompounded word; an etymon.
  8. A primitive letter; a letter that belongs to the radix.
  9. One who advocates radical changes in government or social institutions, especially such changes as are intended to level class inequalities; -- opposed to conservative.
  10. A characteristic, essential, and fundamental constituent of any compound; hence, sometimes, an atom.
  11. 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.
  12. A radical quantity. See under Radical, a.
  13. A radical vessel. See under Radical, a.

Radical Quotations

If you have always believed that everyone should play by the same rules and be judged by the same standards, that would have gotten you labeled a radical 60 years ago, a liberal 30 years ago and a racist today.
Thomas Sowell

With the development of industrial capitalism, a new and unanticipated system of injustice, it is libertarian socialism that has preserved and extended the radical humanist message of the Enlightenment and the classical liberal ideals that were perverted into an ideology to sustain the emerging social order.
Noam Chomsky

Universal suffrage is sound in principle. The radical element is right.
Rutherford B. Hayes

We have to make some radical move to get the attention of everyone. Cheaters can't win and steroids has put us in the position that it's OK to cheat.
Lou Brock

Everyone finds their own version of Charles Dickens. The child-victim, the irrepressibly ambitious young man, the reporter, the demonic worker, the tireless walker. The radical, the protector of orphans, helper of the needy, man of good works, the republican. The hater and the lover of America. The giver of parties, the magician, the traveler.
Claire Tomalin
More "Radical" Quotations

Radical Translations

radical in Dutch is ingrijpend, grondig, radicaal
radical in Swedish is radikal, radikal, grundlig
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