noun
high palace tower; tall tower of a palace
Refers to a lofty tower within a palace or grand residence. A somewhat literary or historical term, not used for modern buildings.
古い絵巻には、殿楼から庭を眺める貴族の姿が描かれている。
In old picture scrolls, nobles are depicted gazing at the garden from a high palace tower.
Compound of 殿 (palace, noble residence) and 楼 (tower, tall building). The exact historical derivation is uncertain, but the combination directly conveys the meaning of a palace tower.