This answer to an earlier question of mine about manual focus lenses uses the term "focus throw". Exactly what does that mean? Why do manual focus lenses have more of it than auto focus lenses?
The focus throw is simply how much you have to turn the focus ring when focusing, what's usually compared is how much you have to turn to get from closest focusing distance to infinity (or vice versa).
A manual lens generally have a longer focus throw, to enable you to do fine focus adjustments, while an auto-focus lens has a shorter focus throw so that it can focus faster.