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