Nri petri bụ ihe na-emighị emi, cylindrical, transperent, na nke a na-ejikarị eme ihe na ụlọ nyocha maka ịzụlite microorganisms, dị ka nje bacteria, fungi, ma ọ bụ obere ihe ndị ọzọ. A na-akpọ ya aha onye mepụtara ya, Julius Richard Petri. A na-ejikarị enyo ma ọ bụ rọba doro anya na-eme efere petri, na mkpuchi ya buru ibu na dayameta na ntakịrị convex, na-enye ohere maka nchịkọta ọtụtụ efere dị mfe. Ihe mkpuchi ahụ na-egbochi mmetọ ebe ọ ka na-enye ohere maka ikuku zuru oke. Ihe oriri Petri jupụtara na ihe oriri na-edozi ahụ, dị ka agar, nke na-enye ebe nkwado maka uto nke microorganisms. Dị ka ihe atụ, agar na-edozi ahụ nwere ngwakọta nke nri, gụnyere carbohydrates, protein, na ihe ndị ọzọ dị mkpa achọrọ maka uto microbial. Ndị ọkà mmụta sayensị na-eji efere petri maka ebumnuche dịgasị iche iche, gụnyere: Culturing microorganisms: Petri efere ekwe ka ndị ọkà mmụta sayensị na omenala na-eto eto dị iche iche microorganisms, nke nwere ike ịhụ n'otu n'otu ma ọ bụ mụọ mkpokọta. dịpụrụ adịpụ na mụọ iche iche.Nnwale ọgwụ nje susceptibility: Site na iji ọgwụ nje-impregnated discs, ndị ọkà mmụta sayensị nwere ike ikpebi irè nke ọgwụ nje megide kpọmkwem microorganisms site na-ekiri na zones nke inhibition gburugburu discs.Environmental nlekota: Petri efere nwere ike iji na-anakọta ikuku ma ọ bụ n'elu samples iji chọpụta ọnụnọ nke microorganisms na a pụrụ iche ngwá ọrụ na-eme nchọpụta microorganisms na a ụfọdụ gburugburu ebe obibi. nchoputa, na ọmụmụ nke microorganisms.
