/ Dictionary / Index P paillasse: Meaning and Definition of Find definitions for: pail•lasse Pronunciation: (pal-yas', pal'yas, pal"ē-as', pal'ē-as"), [key] a mattress of straw; pallet. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: paillasse (Thesaurus) pailful paillette Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language