An enzyme that catalyzes the hydrolysis of a galactoside. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "galactosidase" in a sentence
"Cre reporter mouse expressing a nuclear localized fusion of GFP and beta-galactosidase reveals new derivatives of Pax3-expressing precursors."
"You can tell because the synthesized DNA contained a lacZ gene for beta-galactosidase, making the pretty blue product."
"You may still be able to enjoy soy milk and flour by taking an alpha galactosidase supplement (Beano), which reduces gas by facilitating digestion of the troublesome carbs."