‖ Bacteridium|bæktəˈrɪdɪəm| [mod.L., f. bacterium + Gr. -ιδιον dim. ending; cf.antheridium.] Davaine's name for a genus of minute organisms allied to the bacilli and bacteria. 1876tr.Wagner's Gen.Pathol. 104 Davaine found bacteridia also in two examples of malignant pustule in men.