Stands for "Wide Area Information Server." This is a program that can index enormous amounts of information and make it searchable across large networks (including the Internet). People can search the WAIS index and it will return results by relevance. Searches can then be narrowed down by subsequent searches on the original results. Search engines are a new and improved version of WAIS, specifically for the Web.
This page contains a technical definition of WAIS. It explains in computing terminology what WAIS means and is one of many Internet terms in the TechTerms dictionary.
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