Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
a rotating cube with a flashbulb in each of its four sides, used with certain flash cameras
Used by arrangement with John Wiley & Sons, Inc.
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A small cube that contains four flashbulbs and that rotates automatically to the next unused bulb when a picture is taken with the camera to which it is attached.