Abincin petri wani abu ne mai zurfi, silinda, bayyananne, kuma yawanci bakararre da ake amfani da shi a dakunan gwaje-gwaje don haɓaka ƙwayoyin cuta, kamar ƙwayoyin cuta, fungi, ko wasu ƙananan ƙwayoyin cuta.Ana kiran ta da sunan wanda ya ƙirƙira ta, Julius Richard Petri.A petri tasa yawanci ana yin ta ne da gilashi ko bayyanannen filastik, kuma murfinsa ya fi girma a diamita kuma ɗan ɗanɗano, yana ba da damar tara jita-jita da yawa.Murfin yana hana kamuwa da cuta yayin da yake ba da izinin isassun iska.Petri jita-jita suna cike da matsakaicin abinci mai gina jiki, irin su agar, wanda ke ba da yanayin tallafi don haɓakar ƙwayoyin cuta.Agar na gina jiki, alal misali, ya ƙunshi cakuda abubuwan gina jiki, ciki har da carbohydrates, sunadarai, da sauran abubuwa masu mahimmanci da ake bukata don ci gaban ƙananan ƙwayoyin cuta.Masana kimiyya suna amfani da jita-jita na petri don dalilai daban-daban, ciki har da: Culturing microorganisms: Petri jita-jita ya ba wa masana kimiyya damar al'ada da girma iri-iri. ƙananan ƙwayoyin cuta, waɗanda za a iya lura da su daban-daban ko kuma nazarin su gaba ɗaya. Ware ƙananan ƙwayoyin cuta: Ta hanyar ɗiba samfurin a kan abincin petri, kowane yanki na ƙananan ƙwayoyin cuta za a iya ware da kuma nazarin su daban. tasirin maganin rigakafi akan takamaiman ƙwayoyin cuta ta hanyar lura da yankuna na hanawa da ke kewaye da fayafai. Kulawa da muhalli: Ana iya amfani da jita-jita na Petri don tattara samfuran iska ko saman don sanin kasancewar ƙwayoyin cuta a cikin wani yanayi. labs, taimako a cikin bincike, ganewar asali, da kuma nazarin kwayoyin halitta.