sacrarium

noun

1. 1

   In Ancient Rome, a place where sacred objects were kept, either in a temple (the adytum) or in a house (holding the penates)

2. 2

   The area surrounding the altar of a Christian church; the sanctuary or piscina. Sometimes specifically a drain directly to the earth, perhaps including reference to a basin, for washing vessels from consecration.

3. 3

   The complex sacrum of any bird.