Em·po·ri·um n.; pl. Emporiums L. Emporia
  1. A place of trade; a market place; a mart; esp., a city or town with extensive commerce; the commercial center of a country.
     That wonderful emporium [Manchester] . . . was then a mean and ill-built market town.   --Macaulay.
     It is pride . . . which fills our streets, our emporiums, our theathers.   --Knox.
  2. Physiol. The brain. [Obs.]
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  emporium
       n : a large retail store organized into departments offering a
           variety of merchandise; commonly part of a retail chain
           [syn: department store]
       [also: emporia (pl)]