Dictionary.com
Thesaurus.com

dextranase

American  
[dek-struh-neys, -neyz] / ˈdɛk strəˌneɪs, -ˌneɪz /

noun

Biochemistry.
  1. an enzyme that hydrolyzes dextran to smaller oligosaccharides: used in dentifrices to dissolve dental plaque.


Etymology

Origin of dextranase

First recorded in 1945–50; dextran + -ase