An interpositive, intermediate positive, IP or master positive is an orange-based motion picture film with a positive image made from the edited camera negative. The orange base provides special color characteristics that allow for more accurate color reproduction than if the IP had a clear base, as in print films. From a traditional photographic ... Found on http://en.wikipedia.org/wiki/Interpositive
A positive transparency image generated as an intermediate step to enlarge an image in positive form either from a negative or positive material Found on http://www.encyclo.co.uk/local/21048
An intermediate copy of a film, made on a very fine-grained stock, usually required as an intermediate step to making an internegative Found on https://www.encyclo.co.uk/local/21112