Radical

Rad"i*cal

(rd"*kl), n. 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.
[1913 Webster]

The words we at present make use of, and understand only by common agreement, assume a new air and life in the understanding, when you trace them to their radicals, where you find every word strongly stamped with nature; full of energy, meaning, character, painting, and poetry.
Cleland.
[1913 Webster]

2. (Politics) One who advocates radical changes in government or social institutions, especially such changes as are intended to level class inequalities; -- opposed to conservative.
[1913 Webster]

In politics they [the Independents] were, to use the phrase of their own time, "Root-and-Branch men," or, to use the kindred phrase of our own, Radicals.
Macaulay.
[1913 Webster]

3. (Chem.) (a) A characteristic, essential, and fundamental constituent of any compound; hence, sometimes, an atom.
[1913 Webster]

As a general rule, the metallic atoms are basic radicals, while the nonmetallic atoms are acid radicals.
J. P. Cooke.
[1913 Webster]

(b) 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.
[1913 Webster]

4. (Alg.) A radical quantity. See under Radical, a.
[1913 Webster]

An indicated root of a perfect power of the degree indicated is not a radical but a rational quantity under a radical form.
Davies & Peck (Math. Dict.)
[1913 Webster]

5. (Anat.) A radical vessel. See under Radical, a.
[1913 Webster]

 

New - Add Dictionary Search to Your Site

You can add a free dictionary search box to your own web site by copying and pasting the following HTML into one of your web pages:

<form action="http://www.freedict.co.uk/search.php" method="post">
 <p style="text-align: center; font-family: sans-serif;">
  <a style="font-weight: bold;" href="http://www.freedict.co.uk/"
     title="FreeDict free online dictionary">FreeDict</a>
  <input type="text" name="word" size="20" value="" />
  <input type="submit" name="submit" value="Search Dictionary" />
 </p>
</form>

 

a b c d e f g h i j k l m n o p q r s t u v w x y z

Tue 11th December 2018