Ma'anar ƙamus na abincin gwangwani shine abincin da aka sarrafa kuma an adana shi ta hanyar rufe shi a cikin akwati marar iska, wanda aka yi da ƙarfe, gilashi, ko filastik, sa'an nan kuma ba da shi ta hanyar zafi. Abincin gwangwani na iya haɗawa da 'ya'yan itatuwa, kayan lambu, nama, miya, stews, da sauran abincin da aka shirya. Tsarin gwangwani abinci yana ba shi damar samun tsawon rai kuma a adana shi ba tare da sanyaya ba har sai an buɗe shi.