'Digestion' definitions:

Definition of 'digestion'

From: WordNet
noun
The process of decomposing organic matter (as in sewage) by bacteria or by chemical action or heat
noun
The organic process by which food is converted into substances that can be absorbed into the body
noun
Learning and coming to understand ideas and information; "his appetite for facts was better than his digestion"

Definition of 'Digestion'

From: GCIDE
  • Digestion \Di*ges"tion\ (?; 106), n. [F. digestion, L. digestio.]
  • 1. The act or process of digesting; reduction to order; classification; thoughtful consideration. [1913 Webster]
  • 2. (Physiol.) The conversion of food, in the stomach and intestines, into soluble and diffusible products, capable of being absorbed by the blood. [1913 Webster]
  • 3. (Med.) Generation of pus; suppuration. [1913 Webster]