Ma'anar ƙamus na kalmar "OR circuit" shine da'irar dabaru na dijital da ke aiwatar da aikin dabaru na Boolean na ma'ana OR. Wurin OR yana ɗaukar siginar shigarwa biyu ko fiye kuma yana samar da siginar fitarwa wanda yake gaskiya ne idan ɗaya ko fiye na siginar shigar gaskiya ne.A cikin kayan lantarki, ana aiwatar da da'irar OR ta amfani da diodes, transistors, ko dabaru kofofin. Yana da tushen ginin kayan lantarki na dijital kuma ana amfani dashi a aikace-aikace da yawa, gami da lissafin kwamfuta, sarrafa bayanai, da tsarin sadarwa.