Persistence of Vision
The phenomenon of the eye capturing and holding an image for one-tenth of a second before processing another image.
A path you can draw that can be used to alter the path of a classic tween animation.
When used, you can have an animation change the shape of an object to any form you desire, and you can include two objects in the animation with two different shapes.
Involves changing one object into another, sometimes unrelated, object.
Movie Clip Symbol
Provides a way to create more complex types of animations.