cyclorama

From cyclo- +‎ -rama (as in panorama).

• Rhymes: -ɑːmə

cyclorama (plural cycloramas)

1. A display consisting of a continuous series of pictures placed on the walls of a circular room so as to appear in natural perspective by a person standing in the middle; a circular or semi-circular display.
   • 1959, Anthony Burgess, Beds in the East (The Malayan Trilogy), published 1972, page 461:

     Robert Loo sat, quite content, behind the counter, against a cyclorama of tins of milk and corned beef.

2. A large curtain or wall, often concave, hung upstage, in a theatre.

• diorama (1)