noun
arched ceiling; vaulted ceiling; domed ceiling; circular ceiling
Refers to a ceiling that is curved or rounded, such as an arch, vault, dome, or circular shape. Used in architectural contexts.
教会の丸天井には美しい絵が描かれている。
Beautiful paintings are drawn on the arched ceiling of the church.
この部屋は丸天
This room has a vaulted ceiling, giving a sense of openness.