Wordnet 3.0
NOUN (1)
1.
the political doctrine of Machiavelli: any means (however unscrupulous) can be used by a ruler in order to create and maintain his autocratic government;
The Collaborative International Dictionary of English v.0.48:
Machiavelism \Mach"i*a*vel*ism\, Machiavellianism
\Mach`i*a*vel"lian*ism\, n. [Cf. F. machiav['e]lisme; It.
machiavellismo.]
The supposed principles of Machiavelli, or practice in
conformity to them; political artifice, intended to favor
arbitrary power.
[1913 Webster]
WordNet (r) 3.0 (2006):
Machiavellianism
n 1: the political doctrine of Machiavelli: any means (however
unscrupulous) can be used by a ruler in order to create and
maintain his autocratic government