/ Dictionary / Index B brown spot: Meaning and Definition of Find definitions for: brown' spot' Pronunciation: [key] — Plant Pathol. Plant Pathol. a disease of many plants, characterized by irregular, brownish lesions on the fruit and foliage and by stem cankers, caused by any of several fungi, as Ceratophorum setosum or Cephalosporium apii. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Brownson brown stem rot Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language