/ Dictionary / Index N nomen: Meaning and Definition of Find definitions for: no•men Pronunciation: (nō'men), [key] — pl. nom•i•na (in ancient Rome) the second name of a citizen, indicating his gens, as “Gaius Julius Caesar.” Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nome nomenclator Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language