Pure Diverse Synonym
A pure diverse synonym is a SEPS (search engine proven synonym) that does not contain the root word of any keyword contained within your parent theme. This is a proprietary term used in reference to the natural language processing search engine optimization technology called Theme Zoom Krakken.
For example, if your parent theme is "fast bicycle" and one of your search engine proven synonyms is "faster bicycles" then "faster bicycles" is NOT a PURE diverse search engine proven synonym. This is because it contains the root of both keywords that make up your parent theme phrase. [faster contains - "fast"] [bicycles contains - "bicycle"] Although "faster bicycles" is not a partially diverse synonyms and is a diverse synonym, it is not a pure diverse synonym because it contains the root of one or more keywords within the parent theme. Pure diverse synonyms are the most valuable SEPS and a sometimes rare, depending on the vertical market in which you are performing research.
Also see Theme Zoom