machine consisting of a heavy bar that moves vertically for pounding or crushing ores
source: WordNet 3.0
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
source: WordNet 3.0
a club-shaped hand tool for grinding and mixing substances in a mortar
source: WordNet 3.0
An implement for pounding and breaking or braying substances in a mortar.
source: Webster 1913
verb
grind, mash or pulverize in a mortar
Pestle the garlic.
source: WordNet 3.0
To pound, pulverize, bray, or mix with a pestle, or as with a pestle; to use a pestle.