D defs.my
Entry 1 sense Webster, 1913

Hagioscope

/(hā"jĭ*ō̇*skōp`)/ · Ha·gi·o·scope · IPA
01 n. An opening made in the interior walls of a cruciform church to afford a view of the altar to those in the transepts; -- called, in architec…
  1. 1.
    An opening made in the interior walls of a cruciform church to afford a view of the altar to those in the transepts; -- called, in architecture, a squint.