Kyphosis is the curve noted on the side view. The term, by itself, does not indicate pathology, but just describes the type of the curve. It is normal for thoracic spines to have kyphosis. An increased or decreased curve may note pathology.
Lordosis is the mirror image curve to the kyphosis. It normally is found in the neck and lower back. Again, it is normal and it does not indicate pathology unless increased or decreased beyond a certain point.