cyclorama

/ˌsaɪkləˈræmə/
noun
  1. A large curved screen or wall used in theaters or photography to create the illusion of a wide, continuous background, often showing a sky or landscape.
    • The photographer used a white cyclorama to get a clean background for the portrait.
    • For the school play, they painted a sunset on the cyclorama.
    • The theater's cyclorama made the desert scene look endless.
  2. A panoramic picture displayed on the inside of a cylindrical surface, viewed from the center.
    • We walked into the cyclorama and felt like we were in the middle of the old city.
    • The cyclorama showed a 360-degree view of the mountain range.
    • The museum had a cyclorama of the Civil War battle that visitors could stand inside.
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