Breadcrumb Home > Dictionary > Index R Reform flask: Meaning and Definition of Find definitions for: Reform' flask" Pronunciation: [key] an English salt-glazed stoneware flask of the early 19th century formed as an effigy of one of the figures connected with the Reform Bill of 1832. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. reformer reforming ✖ Related Content Daily Word Quiz: donnybrook Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language