/ Dictionary / Index A Ars Nova: Meaning and Definition of Find definitions for: Ars No•va Pronunciation: (ärz' nō'vu, ärs'), [key] — Music. Music. the style of composition characteristic of the 14th century in France and Italy. Cf. Ars Antiqua. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ars longa, vita brevis* arson Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language