fenestration

• POS: Noun
• HYPHEN: fen=es=tra=tion

CIDE DICTIONARY

fenestration, n. 

•  The arrangement and proportioning of windows; -- used by modern writers for the decorating of an architectural composition by means of the window (and door) openings, their ornaments, and proportions.  [1913 Webster]
•  The state or condition of being fenestrated.  [1913 Webster]

OXFORD DICTIONARY

fenestration, n.
1 Archit. the arrangement of windows in a building.
2 Bot. & Zool. being fenestrate.
3 a surgical operation in which a new opening is formed, esp. in the bony labyrinth of the inner ear, as a form of treatment in some cases of deafness.