Hemicycle
Pronunciation : Hem"i*cy`cle
Part of Speech : n.
Etymology : [L. hemicyclus, Gr.
Definition : 1. A half circle; a semicircle.
2. A semicircular place, as a semicircular arena, or room, or part of a room. The collections will be displayed in the hemicycle of the central pavilion. London Academy.
Source : Webster's Unabridged Dictionary, 1913