/ Dictionary / Index B bull nose: Meaning and Definition of Find definitions for: bull' nose" Pronunciation: [key] a disease of swine caused by bacterial infection of the tissues of the snout causing gross malformation and frequently serious blocking of the nasal passages. bullnose. bull•nose Pronunciation: (bool'nōz"), [key] — n. a rounded or obtuse exterior angle, as the corner made by two walls. a structural member, as a brick, used in forming such an angle. Also calleda step having semicircular or quadrantal ends. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bullnose (Thesaurus) bull-necked bull-nosed bow Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language