/ Dictionary / Index Q quartic: Meaning and Definition of Find definitions for: quar•tic Pronunciation: (kwôr'tik), [key] — Algebra. Algebra. —adj. of or pertaining to the fourth degree. —n. Also calleda quartic polynomial or equation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: quartic (Thesaurus) quartet quartile Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language