digestive system [digestive systems](system of organs) noun [UK: dɪ.ˈdʒe.stɪv ˈsɪ.stəm] [US: daɪ.ˈdʒe.stɪv ˈsɪ.stəm]
digestive tract [digestive tracts](system of organs within multicellular animals which takes in food) noun [UK: dɪ.ˈdʒe.stɪv trækt] [US: daɪ.ˈdʒe.stɪv ˈtrækt]