fenestration noun. [fɛnɪ'streɪʃ(ǝ)n] M19.
[formed as FENESTRATE verb + -ION.]
1. Architecture. The arrangement of windows in a building. M19.

2. Botany & Zoology. The condition of being fenestrate. L19.

3. Surgery. (The operation of cutting) an artificial opening into the labyrinth of the ear, used to restore hearing in cases of otosclerosis. L19.

[TahlilGaran] English Dictionary ▲