noun plural
: a pair of boards hinged at one end and banged together in front of a motion-picture camera before or after a take to facilitate synchronization of sound and picture prints
noun plural
: a pair of boards hinged at one end and banged together in front of a motion-picture camera before or after a take to facilitate synchronization of sound and picture prints
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012