glu·cu·ron·i·dase \ˌglükyəˈränəˌdās, -āz\noun (-s) Etymology:glucuronide + -ase : an enzyme that hydrolyzes a glucuronide; especially: an enzyme that occurs widely (as in liver and spleen) and is active toward a beta-glucuronide < the physiological role of beta-glucuronidase >