/ Dictionary / Index B bluebottle: Meaning and Definition of Find definitions for: blue•bot•tle Pronunciation: (bl'bot"l), [key] — n. cornflower (def. 1). a composite plant, Centaurea cyanus, having narrow leaves and blue flower heads. See Portuguese man-of-war. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bluebottle (Thesaurus) blue book bluebottle fly Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language