ADS BY GOOGLE
Radical, from the latin radix, said of what belongs or is relative to the root. This name ('root') is used to denote the body of plants that absorbs necessary materials for development and, by extension, everything about the origin, the cause, the Foundation or support anything whatsoever.
As an adjective, radical radical is all partisan extremist reforms or any extreme or intransigent person. Examples: "Mohammed Al bin Donal is seen by the US as a radical Islamist that can create new problems in the Middle East", "We need a coach willing to take radical decisions for the good of our team", "a radical anarchist has launched a bomb at the car of the president".
In the field of politics, radicalism is a reform doctrine which seeks change. This trend has emerged as a variant of the centre-left within liberalism. Proponents of this doctrine are known as radicals: "radical candidate assured that he would not nationalize the rail service", "a radical event brought together 10,000 people in front of the Government House", "radical party very deteriorated in the city in question.
For Chemistry, a radical is an organic or inorganic species which is unstable and reactive power is high. Radicals can be synthesized in the laboratory despite their short life span.
In the field of mathematics, radical radical is the sign indicating the operation which consists in extracting roots, while for grammar, the radicals are phonemes that share words of the same family (att - for attention, attentive, carefully, etc.).