Pronunciation: (at'u-siz"um), [key]
—n. (often cap.)
1. the style or idiom of Attic Greek occurring in another dialect or language.
2. attachment to Athens or to the style, customs, etc., of the Athenians.
3. concise and elegant expression, diction, or the like.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.