Etymology
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digestion (n.)

late 14c., digestioun, "conversion of food to a state in which it can be absorbed into the blood from the alimentary canal," from Old French digestion (13c.) and directly from Latin digestionem (nominative digestio) "digestion, arrangement," noun of action from past-participle stem of digerere "to separate, divide, arrange," etymologically "to carry apart," from dis- "apart" (see dis-) + gerere "to carry" (see gest).

Origin and meaning of digestion

updated on October 13, 2021

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Definitions of digestion from WordNet

digestion (n.)
the process of decomposing organic matter (as in sewage) by bacteria or by chemical action or heat;
digestion (n.)
the organic process by which food is converted into substances that can be absorbed into the body;
digestion (n.)
learning and coming to understand ideas and information;
his appetite for facts was better than his digestion
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.