/ Dictionary / Index P paramyxovirus: Meaning and Definition of Find definitions for: par•a•myx•o•vi•rus Pronunciation: (par"u-mik'su-vī"rus, -mik"su-vī'-), [key] — pl. -rus•es. any of various RNA-containing viruses that are similar to but larger than the myxoviruses, including the viruses that cause mumps, measles, parainfluenza, and Newcastle disease. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: paramyxovirus (Thesaurus) Paramus Paraná Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language