noun
seventeen main pavilions of the imperial palace
Historical term referring to the seventeen principal buildings within the Heian-period imperial palace complex (内裏). Used in contexts describing court architecture or ceremonies.
See also: 内裏
平安時代の内裏には十七殿と呼ばれる主要な殿舎があった。
In the Heian-period imperial palace, there were seventeen main pavilions called the 十七殿.