/ Dictionary / Index D dirhinous: Meaning and Definition of Find definitions for: di•rhin•ous Pronunciation: (dī-rī'nus), [key] — adj. Zool. having paired nostrils. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dirhem Dirichlet Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language