As LaRue Cook said, dynamic stretching does incorporate a stretch, but it’s just movement (dynamic) based rather then the 15-30 seconds and hold (static)strech. Dynamic stretching is highly recommend before exercise, as it prepares the body for the exercise movements that will come. This does not mean that you do not perform static stretching at all, it’s just not recommended before exercise. In additon, dynamic stretching can also help with stability and balance as they are performed.
There are many types of Dynamic Stretch exercises, but examples include: Jumping Jacks, Seal Jack, Leg Swings, Arm Circles, Walking Lunge, Inch Worm, Frankenstein March, Knee Hug, Butt Kicks, & High knees.