Also known as: 乳棒, 杵臼, 杵, 研杵, 捣蒜器
A stone, metal or wooden tool that is used to grind and mix material against a working surface such as a slab or a bowl. The material can be anything that can be pulverized, including grain, pigment, or medicinal components. The tool can be shaped like a mallet, a double-ended club, or a rod with a flat base and tapering handle.
