(pl. arcosolia) - an arched niche (found in the catacombs) that could contain a burial; usually found in a cubiculum

niche with an arched roof carved within a tomb; A body would be placed inside the niche.

niche in the wall of a communal tomb (e.g. catacomb), used for burial.

an arched tomb, hewn out of rock in the early Christian period, constructed in the wall of a church in the middle and late Byzantine period

Ancient form of tomb found in the catacombs, a natural sarcophagus cut out of the rock with an arch above

A Hellenistic-to-Byzantine era burial niche, designed to hold a sarcophagus. It was cut into the stone wall of a cave, with the ledge below and an arch above.

A recess with an arched ceiling; arcosolia in burial caves contained a shelf on which the body of the deceased was placed (plural: arcosolia).