- (chemistry) Originally, the purifying of oils and other substances by emulsification with hot water; now more generally, a thorough cleansing of a precipitate or other non-dissolved substance. [First attested from around 1350 to 1470.]
- (Western Christianity) The rinsing of the priest's hand and the sacred vessel following the Communion with, depending on rite, water or a mix of it and wine, which may then be drunk by the priest. [from 17th c.]
- (plural only, Britain, military) The location or building where the showers and sinks are located. [From mid 20th century.]
- The act of washing something.
- (literary or humorous, usually in the plural) Washing oneself; bathing, cleaning oneself up. [From mid 18th century.]
- (Orthodox Christianity) The ritual consumption by the deacon or priest of leftover sacred wine of host after the Communion.
- The act of washing or cleansing the body, or some part of it, as a religious rite. [From mid 16th century.]
- The liquid used in the cleansing or ablution. [From early 18th century.]