In the proper sense, a miracle is an event which is not producible by the natural causes that are operative in effect at the time and place the event occurs.
Catching the apple doesn't overturn the law of gravity or the formulation of a new law. It's merely an intervention of a person with freewill who overrides the natural causes operative in that particular circumstance. And that is, essentially, is what God does when he causes a miracle to occur.
Men can see the greatest miracles and miss the glory of God. What generation was ever favored with miracles as Jesus' generations was? Yet that generation crucified the Son of God!
Author: Tom Wells Source: Christian: Take Heart! 1987, p. 106.