tweening
n.— «When Disney’s artists created dancing mushrooms almost 70 years ago, they did so by drawing still pictures on dozens of celluloid pages, or “cels.” But, Lopez and his fellow students are learning to use a computer program called Adobe Flash that uses “paths” controlled by algebraic equations and a process called “tweening,” to do the same thing—create the illusion of movement on the screen.» —“Computer Animation Offered ; St. Pius Art Class Teaches Students Growing Technique of Creating Movies” by Jack King redOrbit Oct. 7, 2008. (source: Double-Tongued Dictionary)
Further reading
When a teenager went a week without talking as part of a school project, he noticed a surprising side effect: Instead of rehearsing a response to what other people were saying to him, he was focused on listening — and feeling smarter as a result...
Do you refer to your dog or cat as “somebody”? As in: When you love somebody that much, you don’t mind if they slobber. In other words, is your pet a somebody or a something? Also, for centuries, there was little consistency in the...
Tweening is not a term that is unique to Adobe Flash. During the days of hand-drawn cel animation, talented but inexperienced artists actually drew the incremental cels between two main cels and those workers were called “tweeners.” Eventually, a lot of that work was exported to Pacific Rim shops where it could be done more cheaply than in the US. Now, even that work is computerized, since the introduction of 100% computerized animation.