radical

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English[edit]

Etymology[edit]

From French radical, from Late Latin radicalis (of or pertaining to the root, having roots, radical), from Latin radix (root); see radix.

Pronunciation[edit]

Adjective[edit]

radical (comparative more radical, superlative most radical)

  1. Favoring fundamental change, or change at the root cause of a matter.
    His beliefs are radical.
  2. (botany, not comparable) Pertaining to a root (of a plant).
  3. Pertaining to the basic or intrinsic nature of something.
    • Burke
      The most determined exertions of that authority, against them, only showed their radical independence.
  4. Thoroughgoing.
    • 2012 January 1, Donald Worster, “A Drier and Hotter Future”, American Scientist, volume 100, number 1, page 70: 
      Phoenix and Lubbock are both caught in severe drought, and it is going to get much worse. We may see many such [dust] storms in the decades ahead, along with species extinctions, radical disturbance of ecosystems, and intensified social conflict over land and water. Welcome to the Anthropocene, the epoch when humans have become a major geological and climatic force.
    The spread of the cancer required radical surgery, and the entire organ was removed.
  5. (linguistics, not comparable) Of or pertaining to the root of a word.
  6. (linguistics, not comparable, of a sound) Produced using the root of the tongue.
  7. (chemistry, not comparable) Involving free radicals.
  8. (mathematics) Relating to a radix or mathematical root.
    a radical quantity; a radical sign
  9. (slang, 1980s) Excellent; awesome.
    That was a radical jump!

Derived terms[edit]

Related terms[edit]

Coordinate terms[edit]

Translations[edit]

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.

Noun[edit]

radical (plural radicals)

Wikipedia has an article on:

Wikipedia

  1. (historical: 19th-century England) A member of the most progressive wing of the Liberal Party; someone favouring social reform (but generally stopping short of socialism).
  2. (historical: early 20th-century France) A member of an influential, centrist political party favouring moderate social reform, a republican constitution, and secular politics.
  3. A person with radical opinions.
  4. (arithmetic) A root (of a number or quantity).
  5. (linguistics) In logographic writing systems as the Chinese writing system, the portion of a character (if any) that provides an indication of its meaning, as opposed to phonetic.
  6. (linguistics) In Semitic languages, any one of the set of consonants (typically three) that make up a root.
  7. (chemistry) A group of atoms, joined by covalent bonds, that take part in reactions as a single unit.
  8. (organic chemistry) A free radical.

Derived terms[edit]

Translations[edit]

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.

External links[edit]

Anagrams[edit]


French[edit]

Pronunciation[edit]

Adjective[edit]

radical m (feminine radicale, masculine plural radicaux, feminine plural radicales)

  1. radical

External links[edit]


Galician[edit]

Noun[edit]

radical m (plural radicais)

  1. radical (in various senses)

Portuguese[edit]

Noun[edit]

radical m (plural radicais)

  1. (linguistics) root (primary lexical unit of a word)

Synonyms[edit]

Noun[edit]

radical m, f (plural radicais)

  1. radical (person holding unorthodox views)

Synonyms[edit]

Adjective[edit]

radical m, f (plural radicais; comparable)

  1. radical (favouring fundamental change)
  2. drastic; extreme
  3. (Brazil, slang) excellent; awesome; thrilling
  4. (sports) extreme (dangerous)

Spanish[edit]

Adjective[edit]

radical m, f (plural radicales)

  1. radical

Noun[edit]

radical m (plural radicales)

  1. radical