noun
waste-water container (tea ceremony)
A vessel used in the Japanese tea ceremony to collect water that has been used to rinse tea bowls. Also called 建水 (けんすい) or 水翻し (みずこぼし).
See also: 建水 · 水翻し (みずこぼし)
茶道では、使い終わった湯を零しに捨てます。
In the tea ceremony, used water is discarded into the waste-water container.
この零しは陶器
This waste-water container is made of pottery.
Derived from the verb こぼす (to spill), referring to the container's function of receiving spilled or discarded water.