combining audio and video recording in such a way that the sound is perfectly synchronized with the action that produced it; especially synchronizing the movements of a speaker's lips with the sound of his speech
an adjustment that causes something to occur or recur in unison
coordinating by causing to indicate the same time
the relation that exists when things occur at the same time
either of two fleshy folds of tissue that surround the mouth and play a role in speaking
(botany) either of the two parts of a bilabiate corolla or calyx
the top edge of a vessel or other container
