1
- a large tank or tub used to hold liquid, especially in industry大缸, 大桶：
a vat of hot tar.
一大桶热柏油。
2
- （亦作vat dye）a water-insoluble dye, such as indigo, that is applied to a fabric in a reducing bath which converts it to a soluble form, the colour being obtained on subsequent oxidation in the fabric fibres瓮染料, 还原式染料。
vatted, vatting
with obj.（常作be vatted）place or treat in a vat放入大缸; 在大缸中处理。
词源
Middle English: southern and western dialect variant of obsolete fat ' container', of Germanic origin; related to Dutch vat and German Fass.