Definition of Smithsonian

Adjective: Smithsonian

  1. Of or pertaining to the Englishman J. L. M. Smithson, or to the national institution of learning which he endowed at Washington, D. C.; as, the Smithsonian Institution; Smithsonian Reports
Noun: Smithsonian
  1. The Smithsonian Institution

See also:
smiths
smithsonite