noun, noun or participle which takes 'suru'
indoor drying; hanging laundry to dry indoors
Refers to the practice of drying laundry inside the house, often due to rain, pollen, or lack of outdoor space. Commonly used as a noun or with する to describe the action.
雨の日は室内干しにするしかない。
On rainy days, I have no choice but to dry the laundry indoors.
花粉の季節は室内干し
During pollen season, indoor drying increases.