defense information systems agencyglossary / DEFENSE INFORMATION SYSTEMS AGENCY Defense Information Systems Agency. An agency in the U.S. Department of Defense responsible for developing and operating information systems to provide combat support for the armed forces. — Abbr. DISA. 词条贡献者 译者Celia,毕业于新加坡知名法学院,擅长翻译涉及信息和智能技术领域的法律文件。