Of, using, or being a technique that photographs a naturally slow process, such as plant growth, on movie film at intervals, so that continuous projection of the frames gives an accelerated view of the process.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.