/ Dictionary / Index T total quantum number: Meaning and Definition of Find definitions for: to'tal quan'tum num"ber Pronunciation: [key] — Physics. Physics. See principal quantum number. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. total parenteral nutrition total recall Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language