/ Dictionary / Index B bottom round: Meaning and Definition of Find definitions for: bot'tom round' Pronunciation: [key] a cut of beef taken from outside the round, which is below the rump and above the upper leg. Cf. top round. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bottom quark bottomry Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language