noun, plural lav·a·to·ries.
- a room fitted with equipment for washing the hands and face and usually with flush toilet facilities.
- a flush toilet; water closet.
- a bowl or basin with running water for washing or bathing purposes; washbowl.
- any place where washing is done.
noun plural -ries
- Also called: toilet, water closet, WC
- a sanitary installation for receiving and disposing of urine and faeces, consisting of a bowl fitted with a water-flushing device and connected to a drain
- a room containing such an installation
- the washing place in a convent or monastic establishment
n.late 14c., “washbasin,” from Latin lavatorium “place for washing,” noun use of neuter of adjective lavatorius “pertaining to washing,” from lavatus, past participle of lavare “to wash” (see lave). Sense of “washroom” is first attested 1650s; as a euphemism for “toilet, W.C.,” it is attested by 1864.