/ Dictionary / Index Q quillai bark: Meaning and Definition of Find definitions for: quillai' bark" Pronunciation: [key] soapbark (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. quillai quillback Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language