1. 
   Split Run
   1. Different images, such as advertisements, printed in different editions of a publication.
   Found op http://www.tso.co.uk/solutions/publishingsolutions/printproduction/printglo
   
   
2. 
   split run
   noun a print run of a newspaper during which some articles or advertisements are changed to produce a different edition
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=split%20run
   
   
3. 
   Split run
   Two or more different forms of an advertisement which are ran simultaneously in different copies of the same publication, used to test the effectiveness of one advertisement over another to appeal to regional or other specific markets.
   Found op http://www.encyclo.co.uk/local/21023
   
   
4. 
   Split Run
   Printing of two or more variants of a promotional ad run on an Nth or AB split throughout the entire edition. Use of geographical segments of a publication for testing of variants.
   Found op http://www.nmoa.org/Library/index.htm
   
   

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