/ Dictionary / Index B betagalactosidase: Meaning and Definition of Find definitions for: be•ta•ga•lac•to•si•dase Pronunciation: (bā"tu-gu-lak"tu-sī'dās, -dāz or, esp. Brit., bē"-), [key] — n. Biochem. any of a family of enzymes capable of liberating galactose from carbohydrates. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. beta function beta globulin Related Content Daily Word Quiz: cosmology Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language