A radical is a reaction intermediate where a bond is broken and the two parts of the molecule exist carrying a single unshared electron. The radicals are normally destroyed quickly by recombination or they break in another radical and a stable molecule.
two or more atoms behaving as a single chemical unit, i.e., as an atom, e.g., sulfate, phosphate, nitrate.
Very different. New and revolutionary.
Example: Selling cigarettes to children would be a very radical idea.
Found on http://www.bbc.co.uk/skillswise/glossary/
in media studies, the 'radical' tradition is that which is more or less Marxist in its approach, seeing the media as playing an important rôle in the transmission of the dominant ideology. The approach was influenced by Marx, The Frankfurt School, Althusser and, later, Gramsci. -
Found on http://www.encyclo.co.uk/local/20164
- (linguistics) of or relating to or constituting a linguistic root 2. [adj] - arising from or going to the root 3. [adj] - (botany) especially of leaves 4. [n] - a person who has radical ideas or opinions 5. [n] - a character conveying the lexical meaning of a logogram 6. [n] - a sign placed in front of an expressi...Found on http://www.webdictionary.co.uk/definition.php?query=radical
A frame of reference usually associated with a basic power imbalance which is permanent rather than transitory. Those without power always seeking to overthrow those with power.Found on http://www.encyclo.co.uk/local/20474
A radical is a molecule or atom which has an unpaired outer electron. It is very reactive because it needs to gain an electron. Radicals may exist independently for short periods during the course of a chemical reaction, such as in the combustion of a fuel gas.Found on http://www.bocindustrial.co.uk/bocindustrial/technical/glossary/r.html
In Britain, supporter of parliamentary reform before the Reform Bill of 1832. As a group the Radicals later became the progressive wing of the Liberal Party. During the 1860s (led by Cobden, Bright,...Found on http://www.encyclo.co.uk/local/20688
In politics, anyone with opinions more extreme than the main current of a country's major political party or parties. It is more often applied to those with left-wing opinions, although the...Found on http://www.encyclo.co.uk/local/20688
An atom or group of atoms that contains one or more unpaired electrons (usually very reactive species)Found on http://www.encyclo.co.uk/local/20728
an atom or group of atoms with at least one unpaired electrons.Found on http://www.chemicalglossary.net/definition/1417-Radical
A species with an odd number of electrons; formerly called free radical.Found on http://www.chemicalglossary.net/definition/1440-Radical
A radical is a reaction intermediate where a bond is broken and the two parts of the molecule exist carrying a single unshared electron. The radicals are normally destroyed quickly by recombination or they break in another radical and a stable molecule.Found on http://www.chemicalglossary.net/definition/1452-Radical
[ French, from Latin radicalis
having roots, from radix
, a root. See Radix
Of or pertaining to the root; proceeding directly from the root. 2.
Hence: Of or pertaining to the root or origin...Found on http://www.encyclo.co.uk/webster/R/3
l) noun 1. (Philol.) (a)
A primitive word; a radix, root, or simple, underived, uncompounded word; an etymon. (b)
A primitive letter; a letter that belongs to the radix. « The words we at present make use of, and understand o...Found on http://www.encyclo.co.uk/webster/R/4
1. <chemistry> An atom or or electrically neutral group that has one or more unpaired electrons. ... 2. <botany> Of leaves, clustered at the base of the stem. ... (09 Oct 1997) ... Found on http://www.encyclo.co.uk/local/20973
arising from or going to the root; `a radical flaw in the plan`Found on http://wordnetweb.princeton.edu/perl/webwn?s=radical
(rad´ĭ-kәl) thorough or sweeping; directed to the cause or root of a morbid process. a group of atoms that enters into and goes out of chemical combination without change and that forms one of the fundamental constituents of a molecule.Found on http://www.encyclo.co.uk/local/21001
• (a.) Of or pertaining to a radix or root; as, a radical quantity; a radical sign. See below. • (a.) Of or pertaining to the root; proceeding directly from the root. • (n.) A characteristic, essential, and fundamental constituent of any compound; hence, sometimes, an atom. • (n.) A primitive letter; a letter that belongs to the...Found on http://thinkexist.com/dictionary/meaning/radical/
in politics, one who desires extreme change of part or all of the social order. The word was first used in a political sense in England, and its ... [1 related articles]Found on http://www.britannica.com/eb/a-z/r/3
in chemistry, molecule that contains at least one unpaired electron. Most molecules contain even numbers of electrons, and the covalent chemical ... [13 related articles]Found on http://www.britannica.com/eb/a-z/r/3
Type: Term Pronunciation: rad′i-kăl Definitions: 1. In chemistry, a group of elements or atoms usually passing intact from one compound to another, but usually incapable of prolonged existence in a free state (methyl, CH3
); in chemical formulas, a radical is often distinguished by being enclosed in parentheses or brackets....Found on http://www.medilexicon.com/medicaldictionary.php?t=74845
Radical is slang for very good; excellent.Found on http://www.probertencyclopaedia.com/browse/ZR.HTM
In chemistry, a radical (more precisely, a free radical) is an atom, molecule, or ion that has unpaired valence electrons or an open electron shell, and therefore may be seen as having one or more `dangling` covalent bonds. With some exceptions, these `dangling` bonds make free radicals highly chemically reactive towards other s...Found on http://en.wikipedia.org/wiki/Radical_(chemistry)
• (chem.) A group of atoms, either in a compound or existing alone. • PHYSICAL CHEMISTRY • (math.) The root of a number or quantity. The radical sign is v, or more generally n
v. It seems to have been first used in 1525 by Christ...Found on http://www.daviddarling.info/encyclopedia/R/radical.html
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