Complex sentence: When animating in a digital context, especially with Adobe Flash, which uses automatic interpolation, the shortened term "tweening" is commonly used and the resulting sequence of frames is called a "tween".
Split into simpler sentences: When animating in a digital context, especially with Adobe Flash, the shortened term "tweening" is commonly used. In the context of Adobe Flash, inbetweening using automatic interpolation is called "tweening", and the resulting sequence of frames is called a "tween".