/ Dictionary / Index B bisnaga: Meaning and Definition of Find definitions for: bis•na•ga Pronunciation: (bis-nä'gu), [key] — n. any of several thorny cactuses of the genera Echinocactus, Ferocactus, and Astrophytum of the southwestern U.S. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bismutite bison Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language