meaning ingestion
ingestion noun [U]. âº the âprocess of âabsorbing ânutrients or âmedications into the âbody by âeating or âdrinking them: There is a âtherapy âoption that does not ârequire the ingestion of âdrugs. (Definition of ingestion from the Cambridge Advanced Learnerâs Dictionary & Thesaurus Â© Cambridge University Press). Browse. 1  ingenuity.