/ Dictionary / Index R rigidize: Meaning and Definition of Find definitions for: rig•id•ize Pronunciation: (rij'i-dīz"), [key] — -ized, -iz•ing. to make rigid, as through special processing or the addition of chemicals, plastics, etc.: rigidized aluminum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rigidify rigid motion 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