/ Dictionary / Index D dayflower: Meaning and Definition of Find definitions for: day•flow•er Pronunciation: (dā'flou"ur), [key] — n. any plant of the genus Commelina, usually bearing clusters of small, blue flowers that bloom for only one day. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dayflower (Thesaurus) daydream dayfly Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language