washbasin; hand-washing sink
Refers to a basin or sink specifically for washing hands, often found in bathrooms, kitchens, or public facilities.
I washed my hands at the washbasin in the restroom.
This washbasin dispenses water automatically.
流し is a kitchen sink or a general sink for washing dishes, whereas 手洗い器 is specifically for washing hands.
Standard kanji spelling for a washbasin or hand-washing sink.
Abbreviated spelling without the okurigana い; less common but still used.
Compound of 手洗い (hand-washing) and 器 (vessel, container).