washbasin

(noun) a bathroom sink that is permanently installed and connected to a water supply and drainpipe; where you can wash your hands and face. Synonyms: basin, washbowl, washstand, lavatory. Example: "He ran some water in the basin and splashed it on his face."

(noun) a basin for washing the hands (`wash-hand basin' is a British expression). Synonyms: handbasin, washbowl, lavabo, wash-hand basin.