/ Dictionary / Index F flannel-leaf: Meaning and Definition of Find definitions for: flan•nel-leaf Pronunciation: (flan'l-lēf"), [key] — n. the common mullein, Verbascum thapsus. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: flannel-leaf (Thesaurus) flannelet flannelly Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language