Digestion

n. process by which the body breaks down and absorbs food

Digestion is the process of metabolism whereby a biological entity processes a substance in order to chemically and mechanically convert the substance for the body to use.
See more at Wikipedia.org...

Digestion /di·ges·tion/ 1. the act or process of converting food into chemical substances that can be absorbed and assimilated. 2. [more]Digestion - Community and Resources

Noun
1. the process of decomposing organic matter (as in sewage) by bacteria or by chemical action or heat
(hypernym) chemical process, chemical change, chemical action
(derivation) digest
2. the organic process by which food is converted into substances that can be absorbed into the body
(hypernym) organic process, biological process
(hyponym) gastric digestion
(derivation) digest
3. learning and coming to understand ideas and information; "his appetite for facts was better than his digestion"
(hypernym) learning, acquisition
(derivation) digest

n. digestion, process by which the body breaks down and absorbs food