hagioscope

/ˈhæɡiəˌskoʊp/
noun
  1. A small opening or window in a church wall, especially in a screen or pillar, that allows people in a side aisle or chapel to see the main altar or the elevation of the Host.
    • During the tour, the guide pointed out the hagioscope carved into the stone pillar.
    • The hagioscope was designed to give a clear line of sight to the priest during the service.
    • The medieval church had a hagioscope so that worshippers in the side chapel could view the altar.
Synonyms
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