/ Dictionary / Index Q quadra: Meaning and Definition of Find definitions for: quad•ra Pronunciation: (kwod'ru), [key] — pl. -rae a small molding, as a fillet. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. quadr- quadragenarian Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language