diastase
noun
di·a·stase ˈdī-ə-ˌstās 
-ˌstāz
1
: amylase
especially : a mixture of amylases from malt
2
: enzyme
Example Sentences
Recent Examples on the Web Once the brewer adds yeast to the malted grain, then, the diastase can produce more sugar to feed the yeast—and that produces carbon dioxide, alcohol, and a sweet taste. 
Kiona N. Smith, Ars Technica, 5 June 2020 The whole point of malting is to make the grains release diastase but then stop the process before the starch gets turned into sugar. Kiona N. Smith, Ars Technica, 5 June 2020
Kiona N. Smith, Ars Technica, 5 June 2020 The whole point of malting is to make the grains release diastase but then stop the process before the starch gets turned into sugar. Kiona N. Smith, Ars Technica, 5 June 2020 Word History
Etymology
French, from Greek diastasis separation, interval, from diistanai to separate, from dia- + histanai to cause to stand — more at stand
First Known Use
1838, in the meaning defined at sense 1
Medical Definition
diastase
noun
di·a·stase ˈdī-ə-ˌstās, -ˌstāz
1
: amylase
especially : a mixture of amylases from malt
2
: enzyme