/ Dictionary / Index I Illyricum: Meaning and Definition of Find definitions for: Il•lyr•i•cum Pronunciation: (i-lēr'i-kum), [key] — n. a Roman province in ancient Illyria. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Illyrian Ilmarinen Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language