1. (noun)pounder (used only in combination) something weighing a given number of pounds Synonyms: muller, pestle
2. (noun)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 Synonyms: ponderer, ruminator, muller, muser, pestle, stamp, pounder