Pronunciation: (pes'ul, pes'tl), [key]
—n., v., -tled, -tling.
1. a tool for pounding or grinding substances in a mortar. See illus. under mortar 1.
2. any of various appliances for pounding, stamping, etc.
to pound or grind with or as if with a pestle.
to work with a pestle.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.