/ Dictionary / Index P pestiferous: Meaning and Definition of Find definitions for: pes•tif•er•ous Pronunciation: (pe-stif'ur-us), [key] — adj. bringing or bearing disease. pestilential. pernicious; evil. mischievous; troublesome or annoying. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pestiferous (Thesaurus) pesticide pestilence 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