What is an Entrepreneur?

Everywhere I read there seems to be different definitions of an entrepreneur. Some describe them as inventors, others describe them as successful business people. I am interested to hear what you think defines an entrepreneur. What are the particular qualities, charateristics, skills etc. that differentiate one entrepreneur from another?

My new blog is aimed at educating people how to think, act and work towards developing their own unique entrepreneurial flare.

I can't remember any subjects at school that ever taught you how to be an entrepreneur. Maybe it's time to develop these skills in our youth from an earlier age.

The world needs more entrepreneurs to turn their ideas into a reality.

Let me know your thoughts.