Emily Dickinson Lexicon

EM-PO'RI-UM, n. [L. from the Gr. εμποριον, from εμπορευομαι, to buy; εν and πορευομαι, to pass or go, Sax. faran.]

1. A place of merchandise; a town or city of trade; particularly, a city or town of extensive commerce, or in which the commerce of an extensive country centers, or to which sellers and buyers resort from different countries. Such are London, Amsterdam and Hamburg. New York will be an emporium.
2. In medicine, the common sensory in the brain. Coxe.