D defs.my
Entry 2 senses Webster, 1913

Fenestration

· Fen·es·tra·tion · IPA
01 n. The arrangement and proportioning of windows; -- used by modern writers for the decorating of an architectural composition by means of the …
  1. 1.
    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.(Arch.)
  2. 2.
    The state or condition of being fenestrated.(Anat.)