Ma'anar ƙamus na kalmar "glandar narkewa" tana nufin wata gabo ko gland a cikin tsarin narkewa wanda ke ɓoye enzymes da sauran abubuwan da suka dace don rushewar abinci da kuma sha na gina jiki. Misalan glandar narkewar abinci sun haɗa da glandan salivary, hanta, pancreas, da gallbladder. Wadannan gland suna taka muhimmiyar rawa a tsarin narkewar abinci ta hanyar wargaza hadaddun kwayoyin halitta kamar su carbohydrates, proteins, da fats zuwa sassa masu sauki wadanda jiki zai iya sha.