/ Dictionary / Index R Roscian: Meaning and Definition of Find definitions for: Ros•ci•an Pronunciation: (rosh'ē-un, rosh'un), [key] — adj. of, pertaining to, or involving acting. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rosa solis Roscius Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language