fenestrate /fenˈis-trit, fi-nesˈtrit or -trāt/ or fenestrated adjective

1. Having windows or the appearance of windows (architecture)
2. Pierced
3. Perforated
4. Having translucent spots

fenestrāˈtion noun

1. The arrangement of windows in a building (architecture)
2. The fact of being fenestrate
3. Perforation
4. The operation of making an artificial fenestra when the fenestra ovalis has been clogged by growth of bone (surgery)

fenestra ovalis or fenestra rotunda noun (biology)

The oval or round windows, two membrane-covered openings between the middle and the internal ear