Wiktionary
metacrawler
n. (context Internet English) An application that searches the Web using existing search engines
Wikipedia
MetaCrawler
MetaCrawler was a metasearch engine program that blended web search results from Google, Yahoo!, Bing (formerly Live Search), Ask.com, About.com, MIVA, LookSmart and other popular search engine programs. MetaCrawler also provided users the option to search for images, video, news, business and personal telephone directories, and for a while even audio. MetaCrawler became well known during the late 1990s when the verb "metacrawled" was used by television talk show host Conan O'Brien on TRL. MetaCrawler is a registered trademark of InfoSpace, Inc.