Is it "vicious cycle" or "vicious circle?"?

Question

Is it "vicious cycle" or "vicious circle?"?

Answer 1

either way works. I guess it's personal preference

  

Answer 2

Definately 'vicious cycle'.  

Answer 3

vicious cycle, a geometric shape can't be vicious.  I love when people make that mistake though it always makes me laugh.  Props for you for asking.  

Answer 4

Both are correct. A viscous cycle refers to some thing repeating itself, such as something in history like war. Where as a vicious circle usually refers to something more personal.

Answer 5

It's nothing to do with geometry as the expression is abstract.

Although "vicious circle" is more common, they both mean the same, describing a problem or something bad that keeps happening or repeating itself (going round in circles).

Answer 6

I had always thought it was vicious circle, but this may just be the UK usage.