The alignment check report will HIGHLIGHT the steering geometry settings that is out of spec.
Yes you do have camber and it can be negative or positive.
Simply put it is the angle (MAY NOT BE OBVIOUS BY LOOKING) or slant a wheel takes top to bottom away from or to wards a wheel fender for example, in the straight ahead position.It can also be in front or back wheels.
The seemingly easy example I may give is have a closer look at any merc car in full lock situation the camber is a bit evident due to the design aspect of its suspension.