Ma'anar ƙamus na kalmar "magungunan astrigent" na nufin wani magani ko wani abu da ke da tasiri ko tasiri akan kyallen takarda, wanda zai iya taimakawa wajen rage zubar jini, kumburi, ko wasu nau'in fitar da jiki. Ana iya amfani da magungunan astringent a sama ko a ciki, dangane da aikace-aikacen da aka yi niyya, kuma ana amfani da su sau da yawa a cikin maganin yanayi kamar raunuka, ciwon fata, cututtuka na gastrointestinal, da sauransu. Wasu misalan magungunan astringent sun haɗa da tannins, alum, zinc oxide, da witch hazel.