/sim poh"zee ast', -euhst/ , n.
a person who attends or participates in a symposium.
[ 1650-60; orig. symposiastés, deriv. of symposiázein to drink together (with agentive suffix -tes ), v. deriv. of symposíon drinking party (see SYMPOSIUM); in recent use prob. recoinage: SYMPOSI(UM) + -AST ]