/ daɪˈdʒestʃən; NAmE ; dɪ-/ noun
1.
[ U ] the process of digesting food
—compare indigestion
2.
[ C , usually sing. ] the ability to digest food :
to have a good / poor digestion
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WORD ORIGIN
late Middle English : via Old French from Latin digestio(n-) , from the verb digerere , from di- apart + gerere carry.