/ Dictionary / Index D Dirichlet: Meaning and Definition of Find definitions for: Di•ri•chlet Pronunciation: (dir"i-klā' Ger. dē"rē-klā'), [key] 1805–59, German mathematician. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dirhinous dirigible 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