noun
ultra-fine lattice window
A traditional window with a very fine lattice, often found on upper floors of machiya townhouses in Kyoto and other historic areas. Also called 虫籠格子 (むしこごうし).
See also: 虫籠格子
京都の町家の二階には、虫籠窓がよく見られる。
On the second floor of Kyoto townhouses, you often see ultra-fine lattice windows.
Compound of 虫 (mushi, 'insect'), 籠 (ko, 'basket/cage'), and 窓 (mado, 'window'), referring to a window with a lattice so fine it resembles an insect cage.