defense commissary agencyglossary / DEFENSE COMMISSARY AGENCY Defense Commissary Agency. An agency in the U.S. Department of Defense responsible for providing goods and services to members of the armed forces at reduced prices. — Abbr. DeCA. 词条贡献者 资深译员Paloma,毕业于亚洲一流的翻译学院,擅长翻译各类与境外投资相关的法律文件。