This building was known, in monastic terminology, as the “lavabo.”
Nothing represented the poverty of the Legion so much as this "lavabo."
The only portions of the monastery which remain in a fair state of preservation are the Chapter House and the lavabo.
The lavabo, likewise borrowed from the heathen lustrations, reappears now.
The marble lavabo in the sacristy of San Lorenzo is also a doubtful piece of sculpture.
In the sacristy are a Venetian lavabo, some embroideries, and a fine fifteenth-century processional cross.
Do you ever use any ceremony such as the lavabo, or swinging of the incense immediately before or after the service?
In general the lavabo is a sort of trough; in some places it has an almery for towels, &c.