1. a tool, usually club-shaped, used to pound or grind substances in a mortar
2. any of several tools for pounding, grinding, or stamping
verb transitive, verb intransitiveWord forms: ˈpestled or ˈpestling
3. to pound, grind, crush, etc. with or as with a pestle
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'pestle'ME pestel < OFr < L pistillum < pinsere, to pound < IE base *pis-, to pound, crush > Gr ptissein, to stamp