stamp, pestle -- (machine consisting of a heavy bar that moves vertically for pounding or crushing ores)
pestle, muller, pounder -- (a heavy tool of stone or iron (usually with a flat base and a handle) that is used to grind and mix material (as grain or drugs or pigments) against a slab of stone)
pestle -- (a club-shaped hand tool for grinding and mixing substances in a mortar)
Overview of verb pestle
The verb pestle has 1 sense
pestle -- (grind, mash or pulverize in a mortar; "pestle the garlic")