from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A usually curved outdoor bench with a high back.
- n. An often semicircular portico with seats that was used in ancient Greece and Rome as a place for discussions.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A semicircular recess, with stone benches, used as a place for discussion.
- n. A curved bench with a high back.
from the GNU version of the Collaborative International Dictionary of English
- n. A room in a public building, furnished with seats.
- n. The projection of any part of a building in a rounded form.
- n. Any out-of-door seat in stone, large enough for several persons; esp., one of curved form.
from The Century Dictionary and Cyclopedia
- n. In ancient architecture, a raised platform with steps, in the open air, often by a roadside or in some other public place, provided with seats for the purpose of repose and conversation.
Latin, from Greek : ex-, ex- + hedrā, seat.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek ἐξ (ex, "out of") + ἕδρα (hedra, "seat"). (Wiktionary)