1. (n.) The act or process of digesting; reduction to order; classification; thoughtful consideration.

2. (n.) The conversion of food, in the stomach and intestines, into soluble and diffusible products, capable of being absorbed by the blood.

3. (n.) Generation of pus; suppuration.

ablation absorbency absorbent absorption adsorbent adsorption assimilation attrition bile blending blotter blotting blotting paper burning up chemisorption chemosorption consumption depletion digestive system drain eating up endosmosis engrossment erosion exhaustion exosmosis expending expenditure finishing gastric juice gastrointestinal tract imbibing impoverishment infiltration ingestion intestinal juice liver maceration mastication osmosis pancreas pancreatic digestion pancreatic juice percolation predigestion pulpefaction pulpification pulping saliva salivary digestion salivary glands secondary digestion seepage soaking-up sorption spending sponge sponging squandering taking-in using up wastage waste wastefulness wasting away wearing away wearing down