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ANSWER:
Meta search — offered by a number of specialized search engines
— is the concept of simultaneously engaging multiple search engines
and have each of the source engines return its own list of results for
a given search phrase, thus, theoretically, providing more comprehensive
results than regular Web searches. Most meta-search engines display the
combined search results on one, prioritized list, which might mix listings
from several sources. Other meta-search engines present each source search
engine's search results separately, so that the user not only can tell
exactly which results each individual engine returned, but also how each
one ranked the results. There is no guarantee that meta-search results
are more comprehensive than those of regular search engines, but because
more sources will be queried there is at least a chance that utilizing
a meta-search engine will provide results that a regular search engine
would have missed.
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