the photographing on motion-picture film of a slow and continuous process, as the growth of a plant, at regular intervals, especially by exposing a single frame at a time, for projection at a higher speed.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the technique of recording a very slow process, such as the withering of a flower, by taking a large number of photographs on a strip of film at regular intervals. The film is then projected at normal speed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012