Buster Keaton's subject was kinetic man, a being he approached with the almost metaphysical awe we reserve for a Doppelgänger. This being was, eerily, himself, played by himself, then later in a projection room, watched by himself: an experience never possible to any generation of actors in the previous history of the world. [Hugh Kenner, "The Counterfeiters," 1968]
Related: Kinetical; kinetically.来自kinesis的形容词形式。
该词的英语词源请访问趣词词源英文版：kinetic 词源，kinetic 含义。
单词movie（电影）和move（移动）同源，本义是“运动的图片”，这也是电影最初的原理；同样地，cinema（电影院）也和“运动”相关，kinetic（运动的；动力学的）与之同源。这里涉及到c、k通转，再如曾经发过的porcelain（瓷器）和pork（猪肉）的同源关系。