Definition of ingestion
: the act or process of taking in something for or as if for digestion : the act or process of ingesting something A Cochrane review showed that ingestion of cranberry products may decrease the number of symptomatic urinary tract infections in women …— Giovanni Montini et al. Celiac disease is the immune-mediated response to ingestion of gluten from wheat, rye and barley that damages the small intestine.— Valerie Putnam After two years of almost manic ingestion of book after book—Montaigne, Milton, Seneca, Dante—he began to write Moby-Dick.— Andrew Delbanco
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