search-engine verb 2search engine noun 1forms 6 verb2 •(Internet) To look up on a search engine. •(Internet) To use a search engine; to look things up on a search engine. search engine noun1 •An application that searches for, and retrieves, data based on some criteria, especially one that searches the Internet for documents containing specified words.The MEMEX search engine with Textract software has been proved able to search the 1,251,521 records of the Pre-1920 Catalogue in four minutes. — 1985 formssearch engined · search-engined · search engining · search-engining · search engines · search-engines