RADICAL

• (noun) (linguistics) the form of a word after all affixes are removed

  "thematic vowels are part of the stem"

  synonyms : base , root , root word , stem , theme

  "But the root base of the word has to be considered when making such claims such as you are." -added by diviya_inlas

• (noun) a character conveying the lexical meaning of a logogram

• (noun) a person who has radical ideas or opinions

• (noun) (mathematics) a quantity expressed as the root of another quantity

• (noun) (chemistry) two or more atoms bound together as a single unit and forming part of a molecule

  synonyms : chemical group , group

• (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

  "in the body free radicals are high-energy particles that ricochet wildly and damage cells"

  synonyms : free radical

• (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

  "basal placentation", "radical leaves"

  synonyms : basal

• (adj.) of or relating to or constituting a linguistic root

  "a radical verb form"

• (adj.) (used of opinions and actions) far beyond the norm

  "extremist political views", "radical opinions on education", "an ultra conservative"

  synonyms : extremist , ultra

• (adj.) markedly new or introducing radical change

  "a revolutionary discovery", "radical political views"

  synonyms : revolutionary

• (adj.) arising from or going to the root or source

  "a radical flaw in the plan"

WordNet® 3.0, © 2006 by Princeton University.

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