/ Dictionary / Index U umbellule: Meaning and Definition of Find definitions for: um•bel•lule Pronunciation: (um'bul-yl", um-bel'yl), [key] — n. one of the secondary umbels in a compound umbel. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. umbelliferous umber Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language