This is a bullaun stone, a type of early medieval stone feature found at ecclesiastical sites across Ireland, characterised by one or more rounded depressions, or basins, ground into the rock. Their precise original function remains uncertain; theories range from the practical, such as grinding pigments or grain, to the liturgical or votive, and many have accumulated folk traditions involving cures or the potency of the collected rainwater.

The Ballycanew example is a relatively modest but well-defined specimen. The stone itself measures 0.65 metres in diameter and stands 0.6 metres high, with a single basin measuring 0.45 metres across and 0.33 metres deep. That depth is notable; 33 centimetres is a substantial hollow, suggesting considerable and prolonged use over time. It sits within the graveyard associated with the Ballycanew church site, a complex of early ecclesiastical remains that would once have formed the spiritual and communal centre of the surrounding area. Bullaun stones are almost always found in proximity to early Christian church foundations or holy wells, and their presence here places Ballycanew within a wider landscape of early medieval religious activity along the south Wexford countryside.