/ Dictionary / Index B blowball: Meaning and Definition of Find definitions for: blow•ball Pronunciation: (blō'bôl"), [key] — n. the downy head or pappus of the dandelion, salsify, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: blowball (Thesaurus) blow blow-by Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language