digestive /daɪˈdʒɛstɪv/adjective 2noun 2forms 3 adjective2 •Of, relating to, or functioning in digestion. •That causes or promotes digestion.While the doctor and the natives were taking a digestive nap after dinner, I strolled forth to have a peep at the country which could produce so generous a meal. — 1847 noun2 •A substance that aids digestion. •(UK, Canada) A digestive biscuit.I bought a packet of chocolate digestives.I made a mistake and bought plain digestives instead of chocolate ones. formsdigestives · more digestive · most digestive