angel light: Meaning and Definition of

an'gel light"

Pronunciation: [key]
— Archit. Archit.
  1. (in an English Perpendicular window) a compartment, approximately triangular, formed by the arch of the window, an arch of a lower tier of tracery, and a mullion of an upper tier of tracery.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.