Search Result for "vicious_circle":
Wordnet 3.0

NOUN (2)

1. one trouble leads to another that aggravates the first;
[syn: vicious circle, vicious cycle]

2. an argument that assumes that which is to be proved; 



WordNet (r) 3.0 (2006):

vicious circle
    n 1: one trouble leads to another that aggravates the first
         [syn: vicious circle, vicious cycle]
    2: an argument that assumes that which is to be proved