/ Dictionary / Index P pseudonymous: Meaning and Definition of Find definitions for: pseu•don•y•mous Pronunciation: (s-don'u-mus), [key] — adj. bearing a false or fictitious name. writing or written under a fictitious name. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pseudonymous (Thesaurus) pseudonymity pseudoparalysis Related Content Daily Word Quiz: maritime Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language