Fenestration
Pronunciation : Fen`es*tra"tion
Part of Speech : n.
Definition : 1. (Arch.)
Defn: 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.
2. (Anat.)
Defn: The state or condition of being fenestrated.
Source : Webster's Unabridged Dictionary, 1913