National Library of Medicine, U.S. National Library of Medicine, United States National Library of Medicine - the world's largest medical library

Department of Health and Human Services, Health and Human Services, HHS - the United States federal department that administers all federal programs dealing with health and welfare; created in 1979

bureau, federal agency, government agency, agency, office, authority - an administrative unit of government; "the Central Intelligence Agency"; "the Census Bureau"; "Office of Management and Budget"; "Tennessee Valley Authority"