/ Dictionary / Index P piolet: Meaning and Definition of Find definitions for: pi•o•let Pronunciation: (pē"u-lā'), [key] — n. an ice ax used in mountaineering. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: piolet (Thesaurus) PIO pion Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language