Television. the editing of videotape by electronic operations without cutting and splicing the tape.
Movies. the editing of film assisted by a duplicate of the action on videotape.
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British Dictionary definitions for electronic editing
radio television editing of a sound or vision tape recording by electronic rerecording rather than by physical cutting
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