Predigestion

noun

1. Premature or overhasty digestion.
2. Previous digestion; artificial digestion, as of food by peptonization; digestion before eating.
3. Digestion too soon performed; hasty digestion.
4. Artificial digestion of food for use in illness or impaired digestion.
5. The partial hydrolysis etc. of food, by enzymes or other materials, prior to normal digestion