lavabo

/ləˈveɪbəʊ/noun
Middle School
1

A ritual involving the washing of one's hands at a church's offertory before handling the Eucharist.

2

The small towel used to dry the priest's hands following the ritual.

3

A washbasin, particularly (Christianity) the one in a church used in the ritual.

4

A trough used for washing at some medieval monasteries.

5

A lavatory: a room used for urination and defecation.