Webster's Revised Unabridged Dictionary · 1913

Diastatic

Diastatic , adjective

[Greek {not transcribed} separative. See Diastase.]

(Physiology Chemistry) Relating to diastase; having the properties of diastase; effecting the conversion of starch into sugar.
The influence of acids and alkalies on the diastatic action of saliva. — Lauder Brunton