/ Dictionary / Index S Silliman: Meaning and Definition of Find definitions for: Sil•li•man Pronunciation: (sil'u-mun), [key] 1779–1864, U.S. scientist and educator. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Sillery sillimanite Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language