/ Dictionary / Index Q quat.: Meaning and Definition of Find definitions for: quat. Pronunciation: [key] (in prescriptions) four. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: quat (Thesaurus) quassia family quater 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