Offspring from within the same family - example, baby from brother and sister, or a uncle and niece, cousins. Basically if 2 people are related in any way = "inbred".Inbred does not necessarily apply...
Most but not all inbreds are sterile. It depends on how much incest is in the family. In fact even idiots who marry first or second cousins can wipe out a whole blood line. but that's for the best...
Find out if your parents were related before they were married. If they were brother and sister, father and daughter, cousins, etc, then you might be inbred.
an inbred person is a not nice term for someone whose parents are related by blood for example when a brother and sister have a child, the child is said to be inbred. i.e. bred from inside the family