MITRE Corporation A US federally funded R&D center, spun off in 1958 from the {MIT Lincoln Laboratory} (also an FFRDC). MITRE is a non-profit corporation chartered to do R&D in the public interest. MITRE were responsible for system engineering and implementation oversight of {SAGE}. MITRE does not stand for MIT Research and Engineering, though it could have. {Home (http://www.mitre.org/)}. (1999-12-16)