/ Dictionary / Index B Boltzmann constant: Meaning and Definition of Find definitions for: Boltz'mann con"stant Pronunciation: [key] — Physics. Physics. the ratio of the universal gas constant to Avogadro's number, equal to 1.3803 × 10 erg per degree C. Symbol: k&hasp;&hasp; Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Boltzmann bolus Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language