what is meta search engine

here i will show you that what is a meta search engine which are the populer search engine that we use in our real life.

the  meta search engine mean.

A search engine that queries other search engines and then combines the results that are received from all. In effect, the

user is not using just one search engine but a combination of many search engines at once to optimize Web searching.

For example, GOOGLE is a metasearch engine.

and other populer meta search engine is Dogpile, Infoseek, LookSmart, Lycos, WebCrawler, GoTo, DirectHit etc.