/ Dictionary / Index Q quantum statistics: Meaning and Definition of Find definitions for: quan'tum statis'tics Pronunciation: [key] — Physics, Chem. Physics,Chem. the branch of statistical mechanics that incorporates quantum mechanics. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. quantum state quantum sufficit* Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language