from The Century Dictionary and Cyclopedia
- Protected from rain; provided with channels to carry off rain.
Sorry, no etymologies found.
The displuviate atrium is open in such a way as to shed rainwater outwards, keeping most of it from the flooring of the atrium below.
"To approach the house of records over adjoining roofs, eschewing the use of patrolled streets," I said, "then to hurl the iron and rope from the roof of a nearby building to the roof of the house of records, and thence, later, by means of its displuviate atrium, to obtain entrance."
There are five different styles of cavaedium, termed according to their construction as follows: Tuscan, Corinthian, tetrastyle, displuviate, and testudinate.
In the displuviate, there are beams which slope outwards, supporting the roof and throwing the rainwater off.