/ Dictionary / Index C characteristic polynomial: Meaning and Definition of Find definitions for: characteris'tic polyno'mial Pronunciation: [key] — Math. Math. an expression obtained from a given matrix by taking the determinant of the difference between the matrix and an arbitrary variable times the identity matrix. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. characteristic function characteristic root Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language