/ Dictionary / Index E -eum: Meaning and Definition of Find definitions for: -eum Pronunciation: [key] a suffix occurring in some Latin scientific names (peritoneum), and in the corresponding loanwords in English (petroleum). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. eulogy Eumaeus Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language