hemicycle Meaning, Definition & Usage

  1. noun a plane figure with the shape of half a circle
    semicircle.

WordNet

Hem"i*cy`cle noun
Etymology
L. hemicyclus, Gr. + .
Definitions
  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.

Webster 1913