n. A semicircular recess, with stone benches, used as a place for discussion.
n. A curved bench with a high back.
the GNU version of the Collaborative International Dictionary of English
n. A room in a public building, furnished with seats.
n.
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.
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.
Word Usage
"The "exedra" in the western bordering wall of the street."