Ma'anar ƙamus na kalmar "bidigar hari" tana nufin bindiga irin na soja wacce ke da ikon yin harbi cikin sauri kuma yawanci tana amfani da harsashi na tsaka-tsaki. An ƙirƙira shi don amfani da shi da ɗaiɗaikun sojoji a cikin yanayin fama kuma galibi yana fasalta zaɓin wuta, ma'ana mai amfani zai iya canzawa tsakanin atomatik, Semi-atomatik, da fashe yanayin harbi. Ana yawan amfani da kalmar "bidi'ar hari" don bambanta irin waɗannan makaman da sauran nau'ikan bindigogi, kamar bindigogin farauta ko bindigogin bolt-action.