from Wikipedia: In Christian liturgical usage, an aquamanile (plural aquamanilia or simply aquamaniles) is a special ewer for the ritual washing of hands (aqua + manos) over a basin, in the ritual of the lavabo, in which the officiating priest washes his hands before vesting, again before the consecration of the Eucharist and after mass.
from Wikipedia:
In Christian liturgical usage, an aquamanile (plural aquamanilia or simply aquamaniles) is a special ewer for the ritual washing of hands (aqua + manos) over a basin, in the ritual of the lavabo, in which the officiating priest washes his hands before vesting, again before the consecration of the Eucharist and after mass.