WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Wheel Alignment Angles (Negative And Positive Camber)
Courtesy of FORD MOTOR CO.
Camber is the vertical tilt of the wheel when viewed from the front. Camber can be positive or negative and has a direct affect on tire wear.